@mattkahn1966 Matthew E. Kahn

Matthew E. Kahn posts on X about investment, paper, los angeles, finance the most. They currently have [------] followers and [----] posts still getting attention that total [------] engagements in the last [--] hours.

Engagements: [------] #

Mentions: [--] #

Followers: [------] #

CreatorRank: [-------] #

Social Influence

Social category influence finance ncaa football #5050 countries travel destinations technology brands stocks social networks automotive brands celebrities vc firms

Social topic influence investment #4817, paper #943, los angeles, finance, insurance, climate change, in the, joe, economists, future

Top accounts mentioned or mentioned by @uscecon @hooverinst @usc @uscdornsife @grok @rogerpielkejr @ft @wsj @afinetheorem @latimes @siqimit @arpitrage @waymo @rocketmoneyapp @chatgptapp @haroldpollack @aei @nberpubs @anupmalani @amineouazad

Top assets mentioned New York Times Co. (NYT) Tesla, Inc. (TSLA) Optimism (OP) GrokCoin (GROKCOIN) Uber Technologies, Inc. (UBER) Neumark (NEU) Microsoft Corp. (MSFT) Alphabet Inc Class A (GOOGL) Civic (CVC)

Top Social Posts

Top posts by engagements in the last [--] hours

"Spatial Arbitrage. Arizona Boom Draws Californians and Changes Political Hue. via @GoogleNews https://www.nytimes.com/2020/03/15/business/economy/arizona-economy-primary.html https://www.nytimes.com/2020/03/15/business/economy/arizona-economy-primary.html"
X Link 2020-03-16T02:27Z 12.1K followers, [--] engagements

"Going forward how will electric utilities adapt to more intense weather shocks What is their marginal cost of adapting and how much will prices increase by Our recent NBER paper presents some historical evidence on these questions (1/2). https://stanforddaily.com/2023/03/21/stanford-cancels-tuesdays-final-exams-amid-power-outages/ https://stanforddaily.com/2023/03/21/stanford-cancels-tuesdays-final-exams-amid-power-outages/"
X Link 2023-03-23T13:59Z 12.1K followers, [----] engagements

"True False Uncertain. Briefly explain"
X Link 2024-03-09T16:53Z 12.1K followers, 30.5K engagements

"In undergraduate economics we teach "crowding out". Did the introduction of Social Security cause people to save less If the Army Corps of Engineers builds a seawall do people move to the risky area The Trump Administration's value of life rules offer a reverse test"
X Link 2026-01-22T17:18Z 12.1K followers, 465.6K engagements

"@chamath I agree with Chamath. Robert and I argue that the green power mandates in Blue states crowded out investment in resilience by utilities (submerging powerlines in fire areas) and raised electricity prices for consumers. http://www.nber.org/papers/w30583 http://www.nber.org/papers/w30583"
X Link 2026-01-22T18:24Z 12.1K followers, [----] engagements

"Thanks to @usc for providing us with @ChatGPTapp access. In [--] minutes ChatGPT and I wrote this really good Masters @usc_econ lecture. "Estimating the Consumer Surplus Loss if an Urbanite Doesn't Have a Cell Phone" My students will learn on Monday https://drive.google.com/file/d/1w6djctYj2C9Ih_0s2vkp0I7YvBsy0KO_/viewusp=sharing https://drive.google.com/file/d/1w6djctYj2C9Ih_0s2vkp0I7YvBsy0KO_/viewusp=sharing"
X Link 2026-01-23T14:51Z 12.1K followers, [---] engagements

"USC is paying @ChatGPTapp $3 million to give access to AI for everyone on campus. In my essay I discuss how to use this tool to improve the undergraduate economics learning experience. Every Department should be studying this issue. https://drive.google.com/file/d/1EFoNC4wuclRGZcOO23EGM6BxvbSFF2af/viewusp=sharing https://drive.google.com/file/d/1EFoNC4wuclRGZcOO23EGM6BxvbSFF2af/viewusp=sharing"
X Link 2026-01-24T18:40Z 12.1K followers, 14.7K engagements

"What "rules of the game" would foster entry experimentation and competition among drone makers Could MIT undergraduates obtain a contract from the Pentagon Could "Good Will Hunting" win one Dora and I propose a twist on Operation Warp Speed's AMCs. https://www.hoover.org/research/tool-free-military-procurement https://www.hoover.org/research/tool-free-military-procurement"
X Link 2026-01-25T15:48Z 12.1K followers, [---] engagements

"Great to work with @matthewgburgess @RogerPielkeJr and @PatrickTBrown31 on this paper. @USC_Econ @HooverInst The economics of climate adaptation optimism via @OsfFramework https://osf.io/preprints/socarxiv/m7tqu_v1 https://osf.io/preprints/socarxiv/m7tqu_v1"
X Link 2026-01-25T23:51Z 12.1K followers, 19.8K engagements

"We face the same challenge at @usc. Our Morton Fig was a great place to eat and just watch the daily routines of our University unfold. Dora will be happy that my caloric (morning omelette) intake at @HooverInst will decline in [----]. Bring back @StanfordGSB Arbuckle breakfast which ended on Jan [--]. The most important meal of the day https://t.co/kgJPC5sxlX Bring back @StanfordGSB Arbuckle breakfast which ended on Jan [--]. The most important meal of the day https://t.co/kgJPC5sxlX"
X Link 2026-01-27T13:45Z 12.1K followers, [---] engagements

"@johnarnold @HoustonChron Joe Tracy and I argue that Wall Street residential real estate investors should consider co-purchasing homes with buyers. This diversification allows these "vultures" to become "eagles". This builds on Joe's [----] Partnerships book. https://www.hoover.org/research/win-win-idea-transforming-burned-neighborhoods https://www.hoover.org/research/win-win-idea-transforming-burned-neighborhoods"
X Link 2026-01-27T14:09Z 12.1K followers, [---] engagements

"An interesting thread about our new paper. The climate change challenge represents Julian Simon versus Paul Ehrlich's The Bet (Round 2). I am in the Simon camp. Economic Growth markets and human capital accumulation together fuel our global resilience. (1/2) New paper argues that we should not harm economic growth with climate policies because this growth helps with both adaptation and mitigation. It leaves me agreeing and exasperated at the same time because. the best climate policies ALSO HELP economic growth. Let me explain. New paper argues that we should not harm economic growth with"
X Link 2026-01-27T18:08Z 12.1K followers, [----] engagements

"Red States feature Right to Work laws and less regulation (and this attracts firms). Housing is cheaper and the winters are warmer. Some links below to the academic literature. A pretty clear pattern: people are moving from blue states to red states. https://t.co/UIRBu906kZ A pretty clear pattern: people are moving from blue states to red states. https://t.co/UIRBu906kZ"
X Link 2026-01-30T12:48Z 12.1K followers, [---] engagements

"@RogerPielkeJr Around the world what helps poor people to cope with the various risks they face Economic growth raises their access to private goods and new markets and opportunities that allow them to adapt to the specific challenges they face. A Green New Deal has an opportunity cost"
X Link 2026-01-30T13:16Z 12.1K followers, [---] engagements

"Time to phase in more dynamic pricing If more consumers are exposed to more potential price spikes they will invest more in durables that protect them from such price spikes. The next tweet discusses an opt in design. Much of grid risks failure in years ahead as fossil fuels phase out regulator warns https://t.co/G3P6sd8Bki Much of grid risks failure in years ahead as fossil fuels phase out regulator warns https://t.co/G3P6sd8Bki"
X Link 2026-01-30T17:00Z 12.1K followers, [---] engagements

"The electric utilities have the Big Data to design customer specific pricing to induce conservation in the short run and medium term investment in energy efficient durables. This creates a more elastic aggregate demand curve and fewer price spikes. https://dornsife.usc.edu/news/stories/smart-meters-and-dynamic-pricing/ https://dornsife.usc.edu/news/stories/smart-meters-and-dynamic-pricing/"
X Link 2026-01-30T17:01Z 12.1K followers, [---] engagements

"The Journal of Public Economics continues to publish interesting articles. I like this one; "Weather and U.S. railways: risk adaptation and congestion" https://www.sciencedirect.com/science/article/abs/pii/S0047272726000083dgcid=author https://www.sciencedirect.com/science/article/abs/pii/S0047272726000083dgcid=author"
X Link 2026-01-31T16:24Z 12.1K followers, [----] engagements

"We can adapt (at a cost) to any risk that we anticipate. If enough of us face a given risk then entrepreneurs will innovate and this will lower the medium term adaptation cost. Reduced form research ignores this point. Paul Romer's ideas matter for the core Nordhaus model"
X Link 2026-01-31T20:03Z 12.1K followers, [---] engagements

"@EswarSPrasad I just bought it and I will read it on my train ride to work. I will play less chess and learn some applied macro. https://www.amazon.com/Doom-Loop-Economic-Spiraling-Disorder-ebook/dp/B0FBLVMSF4/ref=sr_1_1crid=107QB8MVZY7U9&dib=eyJ2IjoiMSJ9.hDXT8-TIlQUH1YR8R5Zmt0UfPjx3fADjEFORf44AWyaReGzB-WXqL7feo_MpXcJqlN3IbColn_omFEaNzVc0PUAv4g254gdwGtVYj_jbI3auhVrSqfRdUdf6UDfX7XS17qq5pYhzsX__75GR7HFR08IRge0mNQY4nQZxT1jpecqyxrEv2zyAgSB_86Vmtrst.sqcNKvTAw-k0Wsdi7Gzsmr0qozaEj3eF53CH5LOkHwg&dib_tag=se&keywords=the+doom+loop&qid=1769955169&s=books&sprefix=the+doom+loo%2Cstripbooks%2C236&sr=1-1"
X Link 2026-02-01T14:14Z 12.1K followers, [---] engagements

"A great thought experiment. We would attract more of the best and the brightest. Would we change our $ poverty transfer programs What would be the general equilibrium effects in the rest of the world Remittances the price of land in other nations trade patterns According to a [----] Gallup survey [---] billion people would instantly move to the United States if given the opportunity. Thats about [---] potential migrants for every living American. The US population would jump to [----] billion almost one-fifth of humanity. According to a [----] Gallup survey [---] billion people would instantly move to"
X Link 2026-02-01T16:24Z 12.1K followers, [---] engagements

"The demand for skill formation in the developing world would soar as young people prepare for their future in the USA. https://www.nber.org/papers/w23122 https://www.nber.org/papers/w23122"
X Link 2026-02-01T16:26Z 12.1K followers, [---] engagements

"When I visit @HooverInst I meet with Robert. He was a star @USC_Econ student who is now a PHD student at @StanfordEcon . Here is our new paper. A thread about the Roy Model two sector general equilibrium and reduced form climate change research. https://www.nber.org/papers/w34771 https://www.nber.org/papers/w34771"
X Link 2026-02-02T13:32Z 12.1K followers, [----] engagements

"The New York Times published an OP-ED about a "water shortage crisis" in the American West that is caused by endless lawsuits about who has the property rights to the water. Coasian optimism is based on agreement over who owns what (1/2). https://www.nytimes.com/2026/02/02/opinion/water-shortage-colorado-river.html https://www.nytimes.com/2026/02/02/opinion/water-shortage-colorado-river.html"
X Link 2026-02-03T17:03Z 12.1K followers, [---] engagements

"@JohnHCochrane I agree with John. Back in [----] I offered these deep thoughts on my blog. Urban economists will recognize that I revisit the classic points made by Don Pickrell and John Kain see next tweet. Urban infrastructure boosters over-state their ex-ante benefits forecasts"
X Link 2026-02-04T20:55Z 12.1K followers, [---] engagements

"I started to write a paper titled; "Has Urbanization Defused Paul Ehrlich's Population Bomb" a thread. The Likelihood of Persistently Low Global Fertility https://t.co/QHdcZqpECw The Likelihood of Persistently Low Global Fertility https://t.co/QHdcZqpECw"
X Link 2026-02-05T13:09Z 12.1K followers, [---] engagements

"Have law and economics scholars written about the potential for AI to improve "checks and balances" in a system What rules and institutions foster accountability"
X Link 2026-02-08T14:03Z 12.1K followers, [---] engagements

"A successful @usc graduate https://www.wsj.com/sports/football/sam-darnold-super-bowl-seahawks-51517135st=w47dcL https://www.wsj.com/sports/football/sam-darnold-super-bowl-seahawks-51517135st=w47dcL"
X Link 2026-02-09T17:29Z 12.1K followers, [---] engagements

"USC deserves some good news. https://nypost.com/2026/02/09/sports/sam-darnold-led-former-usc-trojans-to-super-bowl-win/ https://nypost.com/2026/02/09/sports/sam-darnold-led-former-usc-trojans-to-super-bowl-win/"
X Link 2026-02-09T23:23Z 12.1K followers, [---] engagements

"A very interesting quote. Human economists still have an edge in designing data collection and sampling designs. The robot must be fed. Could it feed itself I think that fundamental selection issues would arise that it might not appreciate. A thread. Top growth economist @ChadJonesEcon staring into the abyss of AI progress transforming his own work: https://t.co/hU2uhIQb4m Top growth economist @ChadJonesEcon staring into the abyss of AI progress transforming his own work: https://t.co/hU2uhIQb4m"
X Link 2026-02-10T01:22Z 12.1K followers, [---] engagements

"This piece summarizes predictions made by [---] "experts" about the world in [----] based on their survey responses. In our new world of prediction markets are such surveys still informative How should a statistician combine the two sets of predictions https://www.atlanticcouncil.org/content-series/atlantic-council-strategy-paper-series/welcome-to-2036/ https://www.atlanticcouncil.org/content-series/atlantic-council-strategy-paper-series/welcome-to-2036/"
X Link 2026-02-10T19:10Z 12.1K followers, [---] engagements

"The New York Times has published a smart OP-ED exploring the Paul Romer Charter Cities idea in the U.S and praises what Donald Bren has built in Irvine. Could the Rise of Nearby Charter Cities Improve Urban Governance in Los Angeles https://open.substack.com/pub/matthewekahn/p/could-the-rise-of-nearby-charterr=a9x6y&utm_campaign=post&utm_medium=web https://open.substack.com/pub/matthewekahn/p/could-the-rise-of-nearby-charterr=a9x6y&utm_campaign=post&utm_medium=web"
X Link 2026-02-12T14:21Z 12.1K followers, [---] engagements

"Why Is Amtrak Paying $100 Million Per New Train Japan's firms would sell us such trains for 70% less. Buy America by @mattkahn1966 https://open.substack.com/pub/matthewekahn/p/why-is-amtrak-paying-100-millionr=a9x6y&utm_campaign=post&utm_medium=web https://open.substack.com/pub/matthewekahn/p/why-is-amtrak-paying-100-millionr=a9x6y&utm_campaign=post&utm_medium=web"
X Link 2026-02-14T14:41Z 12.2K followers, [----] engagements

"A successful Los Angeles resident should endow a free markets Chair at the USC Public Policy School. This scholar could explore the issues that Shawn discusses in this great piece. https://www.city-journal.org/article/la-mansion-tax-measure-ula-real-estate-housing https://www.city-journal.org/article/la-mansion-tax-measure-ula-real-estate-housing"
X Link 2026-02-16T02:50Z 12.2K followers, [----] engagements

"At @HooverInst I am grateful to Terry Anderson and Nic Parker for inviting me to participate in the annual Markets versus Mandates Conference. Here is an urban story that we haven't considered yet https://nypost.com/2026/02/13/us-news/san-fran-mayor-got-backup-power-to-kids-nutcracker-show-during-blackout/ https://nypost.com/2026/02/13/us-news/san-fran-mayor-got-backup-power-to-kids-nutcracker-show-during-blackout/"
X Link 2026-02-13T20:56Z 12.1K followers, [---] engagements

"@maya_sen Maya's point is really important. The people who would move to a Cambridge or a Boston if markets were de-regulated have no voice in local elections. I wonder if the quadratic voting mechanism applied to local elections would address this issue. https://www.youtube.com/watchv=wOMoch1Qc6Y https://www.youtube.com/watchv=wOMoch1Qc6Y"
X Link 2026-02-13T23:10Z 12.2K followers, [----] engagements

"@cmicmeissner @joefrancis505 Chris you are kind Joe and I have gotten to know each other over the last week. Nobody knows that I have a [----] degree in economic history from the LSE but now the secret is out"
X Link 2026-02-13T23:29Z 12.1K followers, [--] engagements

"@cmicmeissner @joefrancis505 Dudley Baines wasn't so optimistic about my trajectory as an economic historian and E.H. Hunt agreed with him. Dora Costa has spent the last [--] years trying to teach me more economic history. https://press.princeton.edu/books/hardcover/9780691137049/heroes-and-cowardssrsltid=AfmBOorxmFVeR0wQttfy8q4X2yLdMSDAv3cVir-LoveYkPR2dNaTZoB2 https://press.princeton.edu/books/hardcover/9780691137049/heroes-and-cowardssrsltid=AfmBOorxmFVeR0wQttfy8q4X2yLdMSDAv3cVir-LoveYkPR2dNaTZoB2"
X Link 2026-02-14T00:18Z 12.2K followers, [--] engagements

"It was a remarkable and painful experience for me. I turn [--] tomorrow and as I think back; this was the low point of my career. Our paper is very good. It wasn't perfect but it didn't deserve the death penalty. My perspective is presented here; https://matthewekahn.substack.com/p/the-enduring-quality-of-my-coauthored This is probably the most gonzo case I have found in academic publishing: the Review of Financial Studies published an article that was critical of Fannie Mae so Fannie Mae sponsored a "replication" to get the original article retracted. Here the authors of the original"
X Link 2026-02-15T17:15Z 12.2K followers, 81.9K engagements

"One of the authors of the flawed LLPW paper is the parent of one of the current editors of the RFS"
X Link 2026-02-16T15:22Z 12.2K followers, [----] engagements

"Bad news for climate change adaptation pessimists https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2025GL119218 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2025GL119218"
X Link 2026-02-17T19:17Z 12.2K followers, [---] engagements

"The NY Times presents some pretty pictures but it treats its readers as if they are 4th graders by not engaging with the Elephant in the room. During a time when our deficit keeps rising is this a good use of public funds Why not import from Japan https://www.nytimes.com/2026/02/13/travel/amtrak-new-train-airo.html https://www.nytimes.com/2026/02/13/travel/amtrak-new-train-airo.html"
X Link 2026-02-14T14:46Z 12.2K followers, [---] engagements

"An excellent point. The fear of the #Coronavirus Virus means that Sherwin Rosen's famous [----] AER Superstars paper becomes even more relevant today. https://www.uvm.edu/pdodds/files/papers/others/1981/rosen1981a.pdf Once we move classes online; whats the justification for our proliferation of campuses Why not have a few high quality lecturers broadcast to everyone https://www.uvm.edu/pdodds/files/papers/others/1981/rosen1981a.pdf Once we move classes online; whats the justification for our proliferation of campuses Why not have a few high quality lecturers broadcast to everyone"
X Link 2020-03-08T12:38Z 12.2K followers, [--] engagements

"I have been appointed a Visiting Fellow at the @HooverInst for the AY 2023-2024 year. I look forward to seeing more of my friends at Stanford"
X Link 2023-06-23T23:47Z 12.2K followers, 10.2K engagements

"I am at parent's place and found this. How many teens know what this is"
X Link 2024-01-12T16:34Z 12.2K followers, 50.8K engagements

"In [----] Ed and Joe published an important JPE paper that documents that poverty magnets emerge when places have durable housing supply and low demand. Immigrants boost local housing demand and stabilize the place. Utica NY is an example. https://scholar.harvard.edu/glaeser/publications/urban-decline-and-durable-housing https://scholar.harvard.edu/glaeser/publications/urban-decline-and-durable-housing"
X Link 2024-09-23T14:01Z 12.2K followers, [---] engagements

"Back in [----] Michael Cragg and I wrote this paper. We never published it and I don't have a copy of it on any of my current computers and you can't find it on the Internet. "Immigration's Role in Regional Adjustment: City Level Evidence of Spatial Arbitrage""
X Link 2024-09-23T14:07Z 12.2K followers, [---] engagements

"For China climate change is no hoax its a business and political opportunity Although Donald Trump has called climate change a hoax invented by China Chinese leaders believe cutting carbon emissions will generate economic and political payoffs at home and abroad"
X Link 2016-12-07T14:27Z 208.1M followers, [--] engagements

"Smart meters and dynamic pricing can help consumers use electricity when its less costly saving money and reducing pollution Most households pay a flat rate 24/7 for electricity although the cost of generating it fluctuates through the day. Wireless technologies are changing that system"
X Link 2022-10-18T16:29Z 208.1M followers, [--] engagements

"We welcome Professor Gib Metcalf of @TuftsUniversity to USC"
X Link 2019-03-20T00:40Z 11.2K followers, [--] engagements

"A distinctive Baltimore home"
X Link 2019-08-29T18:16Z 11.7K followers, [--] engagements

"I am looking forward to speaking at this event. I will focus on commercial real estate and the climate resilience challenge. Both human capital innovation and financing are needed here. Empirical benchmarks of adaptation are also needed (1/2). https://www.accelevents.com/e/2020RealEstateResearchVirtualSymposium#Agenda https://www.accelevents.com/e/2020RealEstateResearchVirtualSymposium#Agenda"
X Link 2020-08-27T14:31Z 11.2K followers, [--] engagements

".@MacMc21CC has informed me that our book (not just the e-book) has now been published. Teachers (both at the University and the high school level) can order an examination copy of our book at this link. Our book offers a fresh perspective on urban growth. https://jhupbooks.press.jhu.edu/title/unlocking-potential-post-industrial-cities https://jhupbooks.press.jhu.edu/title/unlocking-potential-post-industrial-cities"
X Link 2021-01-25T21:29Z 11.7K followers, [--] engagements

"Bird songs in Los Angeles. Listen to the audio"
X Link 2021-03-20T21:48Z 11.2K followers, [--] engagements

"@jenniferdoleac @LudoGazze @TAMUECON Very interesting. As empiricists uncover such relationships we help society to adapt. This means that ugly correlations shrink in the future. Are the authorities already aware of her findings Our [----] paper is a 1st cousin. https://www.sciencedirect.com/science/article/abs/pii/S004727272100044X https://www.sciencedirect.com/science/article/abs/pii/S004727272100044X"
X Link 2023-03-08T14:26Z 11.7K followers, [---] engagements

"A thread on general equilibrium and spatial climate risks. A preview; "don't forget the cross-elasticity" https://www.economist.com/graphic-detail/2023/04/11/accounting-for-flood-risk-would-lower-american-house-prices-by-187bn https://www.economist.com/graphic-detail/2023/04/11/accounting-for-flood-risk-would-lower-american-house-prices-by-187bn"
X Link 2023-04-12T14:42Z 11.7K followers, [--] engagements

"@RogerPielkeJr @RichardTol I hadn't seen Richard's new paper that averages across [---] previous studies. Of the [---] past studies how many have incorporated adaptation progress into their SCC models I would guess that the answer is [--] or less. Am I wrong I want to be wrong here"
X Link 2023-06-13T16:16Z 10.3K followers, [----] engagements

"The U.S government can borrow at the risk free rate. If the government now borrows at a higher expected interest rate what real effects does Dr. Litterman's proposal have Would the government borrow less Would Chicago economists thus approve his proposal"
X Link 2023-06-26T23:38Z 10.3K followers, [---] engagements

"An interesting example of how durable assets are repositioned as prices drop for commercial real estate. UCLA is located in my Westwood. Westwood is [--] miles from this building"
X Link 2023-06-29T23:40Z 10.3K followers, [----] engagements

"Center cities that improve local quality of life through delivering street safety land use reforms to allow for building conversions and environmental beauty and resilience will thrive. My March [----] optimistic piece in @BusinessInsider"
X Link 2023-06-29T23:40Z 10.3K followers, [---] engagements

"@Afinetheorem I agree. In April [----] I attended a @USCDornsife lunch with parents whose children have been admitted to USC Dornsife. These parents asked pointed questions concerning whether the tuition was a good investment. They were sophisticated shoppers. (1/2)"
X Link 2023-07-11T18:15Z 10.3K followers, [--] engagements

"@Afinetheorem @USCDornsife In our private discussion I stressed that USC's Economics teaching focuses on skill formation related to incentive theory and the formal testing of empirical hypotheses. I also told them that I emphasize the beneficial role of markets in improving everyone's quality of life"
X Link 2023-07-11T18:15Z [----] followers, [--] engagements

"I am monitoring the Pacific Ocean"
X Link 2023-07-11T20:43Z 10.3K followers, [---] engagements

"An interesting new paper about the Excess Death Count in Europe in Summer [----] in the face of high heat. A thread about adaptation. https://www.nature.com/articles/s41591-023-02419-zcampaign_id=253&emc=edit_dww_20230712&instance_id=97359&nl=david-wallace-wells&regi_id=63531264&segment_id=139132&te=1&user_id=acf9ec01643fbb329b52a5a1ddddd19f https://www.nature.com/articles/s41591-023-02419-zcampaign_id=253&emc=edit_dww_20230712&instance_id=97359&nl=david-wallace-wells&regi_id=63531264&segment_id=139132&te=1&user_id=acf9ec01643fbb329b52a5a1ddddd19f"
X Link 2023-07-12T18:55Z 11.2K followers, [----] engagements

"As Europe's summer temperature increases more people will buy and operate an air conditioner. This is their private marginal cost of adapting to rising heat. The global GHG externality from this expenditure shrinks as the grid becomes greener"
X Link 2023-07-12T19:09Z 10.3K followers, [---] engagements

"As more Europeans demand air conditioning aggregate demand increases and this induces innovation that benefits everyone seeking to adapt. See our [----] paper"
X Link 2023-07-12T19:09Z [--] followers, [---] engagements

"Good stuff from @Richard_Florida that counters the "Urban Doom Loop" narrative. Cities will adapt if they don't anticipate a Federal bailout. Moral hazard lurks here"
X Link 2023-07-17T02:04Z 10.3K followers, [--] engagements

"An interesting experimental paper. Individuals reveal their "type" (selfish or pro-social) in round #1. In future rounds these different types play repeated group games together. The "pro-social" types cooperate and avoid "Bad Nash Equilibria". 1/2"
X Link 2023-07-21T13:43Z 10.3K followers, [----] engagements

"@BenjiBacker People have private lives and public lives. You use the word "ignore". People are free to choose where they live and what products they buy to protect themselves and their families against serious climate risks. My [----] and [----] books explore my free market optimism. 1/3"
X Link 2023-07-23T01:19Z 10K followers, [----] engagements

"This great piece mixes two different ideas as it celebrates Mr. Ravitch's life. Yes NYC needs a new generation of boosters. What do boosters do Do they lobby the Federal Government for $ transfers Or do they galvanize locals so they don't free ride"
X Link 2023-07-31T04:42Z 10.3K followers, [----] engagements

"Some pessimism for carbon mitigation optimists. China is prioritizing economic growth over decarbonization. Developing nations free ride. Xi Jinpings revealing response to floods and heatwaves"
X Link 2023-08-05T16:50Z 10.3K followers, [----] engagements

"A high profile property rights dispute. The Governor of New Jersey is asserting that residents of his state have the right to commute to NYC "for free". Urban economists when would New Jersey home prices RISE because of congestion pricing A thread"
X Link 2023-08-07T13:46Z 10.3K followers, [---] engagements

"Jan Brueckner's RSUE piece from [----] offers insights. If rich people know that they can travel at high speeds to Manhattan on priced roads then more of them will live in suburbia. This could boost NJ home prices in desirable areas"
X Link 2023-08-07T13:50Z 10K followers, [---] engagements

"Climate change poses a rising risk to our quality of life. Free markets will both help to decarbonize the global economy accelerate economic growth and help us to adapt to the emerging challenges we face. The debate here concerns the growth of government"
X Link 2023-08-10T13:33Z 10.3K followers, [---] engagements

"I explore the "Urban Doom Loop" and the role that political reforms play in determining the competitiveness of cities. How Would Milton Friedman Govern San Francisco in 2023"
X Link 2023-08-13T14:38Z 10.3K followers, [--] engagements

"USC can learn from our colleagues at the Great UC San Diego Economics. While our Kaprelian Hall was built in [----] it looks and feels like it was built in [----] Our young great faculty deserve to be in a building that is younger than them (1/2)"
X Link 2023-08-14T03:40Z 10.3K followers, [--] engagements

"For those who teach undergraduate environmental economics this is a very useful paper for setting out some key debating points. Do young people really now fear economic growth In the year [----] will a Nobel Prize be awarded in "Degrowth Theory""
X Link 2023-08-17T22:34Z 10.3K followers, [----] engagements

"Hype or Rational Expectations Four of the team members are economics majors. https://www.latimes.com/sports/usc/story/2023-08-20/2023-usc-trojans-football-undefeated-regular-season https://www.latimes.com/sports/usc/story/2023-08-20/2023-usc-trojans-football-undefeated-regular-season"
X Link 2023-08-20T21:06Z 11.2K followers, [---] engagements

"I'm sure that some of our faculty played varsity football in college. Perhaps the theorists Here is the USC Roster"
X Link 2023-08-20T21:08Z 10.3K followers, [---] engagements

"In my USC Econ [---] Urban Economics class the class paper counts for 15% of the final grade. Anticipating the risk of "ChatGPT co-authorship" I will give the students a dataset and they must write their paper based on what they learn from the data set. #adaptation"
X Link 2023-08-21T14:46Z 10.3K followers, [----] engagements

"Congratulations At @usc football and high quality economics research are complements Coach Lincoln Riley is always welcome at our delightful Kaprelian Hall"
X Link 2023-08-26T15:39Z 10.3K followers, [--] engagements

"The Boskin Report Revisited The quality adjusted price of durable goods declines sharply over time. This means that CPI growth over-states inflation"
X Link 2023-09-03T00:10Z 10.3K followers, [----] engagements

"An interesting article that doesn't talk about water prices as signals of rising scarcity. A thread about Minnesota Agricultural water prices. We adapt when we have an incentive to do so. https://www.nytimes.com/interactive/2023/09/03/climate/minnesota-drought-potatoes.html https://www.nytimes.com/interactive/2023/09/03/climate/minnesota-drought-potatoes.html"
X Link 2023-09-03T13:20Z 11.2K followers, [---] engagements

"A data point supporting @JWaldfogel research on the median consumer. Dora and I live [--] mile away from this store and we will shop there. A Chinese grocery store opening in West Los Angeles represents a cultural shift"
X Link 2023-09-03T17:38Z 10.3K followers, [---] engagements

"@pewresearch For those who are interested in what can be learned from the New York Times Wedding Page and from the choices of Harvard graduates this paper offers many insights"
X Link 2023-09-09T18:48Z 10.3K followers, [---] engagements

"@AndrewRumbach Fair point. The U.S death toll from natural disasters continues to shrink due to our rising income and real time information on the risks and our access to cell phones. An economist would ask what is our individual and aggregate willingness to pay to not face these shocks"
X Link 2023-09-13T00:55Z 10.3K followers, [--] engagements

"We are revising our paper and I expect that we will include the terrible recent flood in Libya. Depreciating infrastructure appears to have played a role there in explaining the tragedy"
X Link 2023-09-20T14:30Z 10.3K followers, [---] engagements

"A flashback to [----] and the publication of my Climatopolis book focused on the private sector's role in accelerating the pace of adaptation"
X Link 2023-09-20T14:32Z 10.3K followers, [---] engagements

"I am delighted that @USC_Econ will hire a junior macroeconomist. Progress not Regress https://usccareers.usc.edu/job/los-angeles/assistant-professor-of-economics/1209/54627205456 https://usccareers.usc.edu/job/los-angeles/assistant-professor-of-economics/1209/54627205456"
X Link 2023-09-21T01:07Z 11.2K followers, 26.7K engagements

"@PorzioTommaso Great point Each of us has built up Twitter Capital (our followers) that we lose if everyone else literally runs away. This dynamic resembles a "bank run". Who is the FDIC in this case Is it Mr. Musk Who is our "anchor" keeping us here History vs. Expectations"
X Link 2023-09-21T12:59Z 10K followers, [--] engagements

"@PorzioTommaso Multiple equilibria on the Twitter platform is an under-explored research topic. I claim that this Krugman paper is relevant here"
X Link 2023-09-21T13:01Z 10.3K followers, [--] engagements

"@JaereAere An important question. In this paper Somik and I argue that the growing middle class around the world worry that they will bear the incidence of such a tax and thus they oppose it"
X Link 2023-09-22T13:05Z 10K followers, [---] engagements

"A quote (that I like) from USC's new Provost. This ability to disagree intellectually academically is the single most important feature of our profession in our industry"
X Link 2023-09-23T14:25Z 10.3K followers, [----] engagements

"What policy interventions does @JPAL_NA recommend here Why hasn't the city already enacted these A commitment to law and order and new zoning codes would be sufficient. Watching the Real-Estate Bust From the Streets of San Francisco"
X Link 2023-09-24T14:20Z 10.3K followers, [--] engagements

"Imagine a San Fran where startup firm's workers can legally sleep at their office. While this arrangement isn't for everyone many startups would find this quite attractive. There are all sorts of possibilities that arise if the city is safe and the laws are flexible"
X Link 2023-09-24T14:24Z 11.2K followers, [---] engagements

"@MarshallBBurke Heat and Learning; install AC and the damage gradient flattens. Park R. Jisung Joshua Goodman Michael Hurwitz and Jonathan Smith. "Heat and learning." American Economic Journal: Economic Policy [--] no. [--] (2020): 306-339"
X Link 2023-09-25T22:14Z 11.2K followers, [---] engagements

"@MarshallBBurke The general challenge here for empiricists is that we often do not have [--] to [--] functions mapping inputs into facilitating adaptation. Your Cell phone offers hundreds of different functions that help you to adapt to many different emerging weather challenges. #bundling"
X Link 2023-09-25T22:16Z 11.2K followers, [---] engagements

"When the Consumer City recedes local residents who don't own cars lose the most from the increase in the "Becker Price" of buying goods. Target to Close Stores in San Francisco Other Cities Citing Theft"
X Link 2023-09-27T13:51Z 10.3K followers, [--] engagements

"This model can be used to study climate change adaptation. A firm must form expectations about the risks it faces. Robust decision making could be explored"
X Link 2023-10-02T10:12Z 10.3K followers, [----] engagements

"More bad news for adaptation pessimists"
X Link 2023-10-03T10:51Z 10.3K followers, [---] engagements

"$100 billion sounds like a "big number". Suppose that Singapore's adaptation plan is to spend $5 billion a year for [--] years (5*20=100). Singapore's GNP is already $378 billion a year. 5/378 is a small number. (1/2) https://www.macrotrends.net/countries/SGP/singapore/gnp-gross-national-product#::text=Singapore%20gnp%20for%202022%20wasa%205.36%25%20increase%20from%202018 Climate adaptation isnt cheap. https://t.co/fWheZa4e3k https://t.co/Gci2XjJpVW"
X Link 2023-10-12T02:09Z 11.2K followers, [----] engagements

"A free research idea. The Federal Government is sharply increasing spending on "public investment". What is the government's "producer price index" How much capital is produced when government is the buyer What is the value of this new capital (1/2)"
X Link 2023-10-12T11:35Z 10.3K followers, [----] engagements

"An excellent thread but I hope the IEA is examining micro data to estimate more subtle Engel curves relating the ownership and the use of fossil fuel intensive durables. Our [----] paper offers some clues here"
X Link 2023-10-25T15:51Z [----] followers, [---] engagements

"More bad news for adaptation pessimists In Bangladesh firms that install air purifiers gain from improved worker productivity as the devices partially offset outdoor PM2.5 air pollution. A short thread"
X Link 2023-11-03T12:58Z [----] followers, [----] engagements

"I recently enjoyed meeting Wes Miller from @TAMUECON . Wes is on the job market and some of his research is closely related to my work on the economics of natural disasters. He also told me about his brief professional football career"
X Link 2023-11-03T13:27Z 10.3K followers, [---] engagements

"An example of how free markets help us to adapt. A new paper titled "Mortgage Lock-In Mobility and Labor Reallocation" documents that when interest rates rise those who hold a mortgage are less likely to "move to opportunity". WFH solves . (1/2)"
X Link 2023-11-04T12:13Z [----] followers, [----] engagements

"USC economists watch USC football"
X Link 2023-11-05T02:44Z 10.3K followers, [----] engagements

"I like this Substack piece. I have worried that Urban Commercial Real Estate owners are using the "doom loop" narrative to lobby for spatial subsidies from the Biden Administration. Anticipated Bailouts cause moral hazard and slow adaptation"
X Link 2023-11-05T15:53Z [----] followers, [---] engagements

"@MaxGhenis While I agree with your point microeconomists have documented some heterogeneity here. Those with a taste for "voluntary restraint" (think of Berkeley CA residents) do respond more to such nudges. Two links; one from the USA and one from China"
X Link 2023-11-06T12:59Z 10.3K followers, [--] engagements

"@MaxGhenis Environmental ideology and household energy conservation in Beijing authors; Weizeng Sun Xiaonan Zhang Hao Li Jing Wu Siqi Zheng"
X Link 2023-11-06T13:02Z [----] followers, [--] engagements

"I will be speaking (briefly) at this event about the opportunities and challenges that I foresee for commercial real estate going forward. My focus is on urban quality of life and the rise of hybrid-WFH"
X Link 2023-11-06T14:09Z [----] followers, [----] engagements

"My father's father was a shoe salesman. My mother's father sold neckties. My friends tell me that I'm a good salesman (I take this to be praise). I serve on Yi-Ju Hung's @usc_econ thesis committee. A thread"
X Link 2023-11-07T13:33Z [----] followers, [----] engagements

"Yi-Ju Hung's paper "Immigration and Economic Opportunity" uses an inter-generational U.S panel data set (in the spirit of @leah_boustan ) and studies the medium term economic performance of native kids who lived in areas where immigrants moved to"
X Link 2023-11-07T13:38Z [----] followers, [---] engagements

"I encourage #Econtwitter to take a look at @USC_Econ Jack Chapel's research agenda. Jack is a 5th year student working on #health #economics topics. Jack and I are writing a diabetes paper together. MDs need to read Heckman's selection papers"
X Link 2023-11-08T13:54Z [----] followers, [----] engagements

"Ken Griffin on the Lucas Critique and machine learning predictions at the [--] minute mark"
X Link 2023-11-12T22:15Z [----] followers, [----] engagements

"I am riding Chicago Transit"
X Link 2023-11-16T22:24Z 10K followers, [----] engagements

"The Urban Loop doesn't have to be an "Urban doom loop" if elected officials deliver high quality public services including street safety efficient transit and school choice. Chicago at night"
X Link 2023-11-16T23:47Z 10K followers, [---] engagements

"George Schultz with hair"
X Link 2023-11-17T19:43Z [----] followers, [---] engagements

"An interesting new paper. In my [----] book I argue that a reduction in the rate of home ownership will help us to adapt to climate change. Management companies can self-insure and have the expertise and the access to capital and data to reduce property risk exposure"
X Link 2023-11-21T14:08Z [----] followers, [----] engagements

"Indoor air pollution progress offers a test for free market environmentalist ideas. Must the government set the standard here As the price of indoor PM2.5 monitoring devices decline could consumers demand (and then act upon) information using markets"
X Link 2023-11-24T15:11Z [----] followers, [---] engagements

"Who certifies product quality Once a quality standard becomes common knowledge then this will trigger buyer and seller substitution effects. Consider this funny public health QJE example from Los Angeles"
X Link 2023-11-24T15:13Z 10.3K followers, [--] engagements

"Some #adaptation optimism published in @PNASNews "Management actions such as prescribed fires and mechanical thinning can curb severe fire behavior and reduce the potential negative impacts of uncharacteristic fires on wildlife.""
X Link 2023-11-24T23:00Z 10K followers, [----] engagements

"Excellent analysis. Is Milei implicitly endorsing the academic field of "social finance" I conjecture that #Milei is using social media to trigger a new type of 1980s Jeff Sachs "Shock Therapy". Will foreign direct investment flow in"
X Link 2023-11-25T14:00Z 10K followers, [----] engagements

"Argentina's election outcome is now international news. Without social media it wouldn't have been. Milei appears to be making a bet that international capital markets will reward Argentina with a lower risk premium and this will stimulate international investment"
X Link 2023-11-25T14:05Z 10K followers, [---] engagements

"National currencies as differentiated products in international capital markets"
X Link 2023-11-25T18:51Z 10K followers, [---] engagements

"A recent JPUBE paper documents that local parks are a more desirable amenity if local crime rates are lower. In a similar spirit in our [----] paper we argue that the demand for Beijing's restaurants is higher on lower pollution days"
X Link 2023-11-27T14:46Z 10K followers, [---] engagements

"I am interested in cases where property owners and business interests have an incentive to push for a "greening" of their city. The same logic applies to adapting to local climate change physical risks. Endogenous amenity"
X Link 2023-11-27T14:49Z 10K followers, [---] engagements

"I just received a public relations email informing me how this for profit firm is pursuing a profit strategy related to facilitating climate change adaptation. A thread"
X Link 2023-11-29T13:15Z 10K followers, [---] engagements

"I am not qualified to judge whether this specific firm will succeed but I do know that a competition has begun. More and more firms are entering the "adaptation arena". You do not have to be named Hopenhayn or Melitz to predict the innovation returns to taking more draws"
X Link 2023-11-29T13:18Z 10K followers, [--] engagements

"Mechanical climate change IAM models ignore the innovation process that is fostered by competition between firms. This competition accelerates as climate change risks grow worse. This is the "Lucas Critique" logic that fuels my adaptation optimism"
X Link 2023-11-29T13:19Z 10K followers, [--] engagements

"My [----] book presents my vision for how market competition and the private sector's actions will fuel climate change #adaptation. It is often the case that federal and local policies limit the pace of adaptation"
X Link 2023-11-29T13:22Z 10K followers, [--] engagements

"Consider the example of California adaptation to wildfire risk. If insurers can "price gouge" in fire zones AND if zoning changes to allow for taller buildings outside of the fire zones then market signals nudge more people to live in safer places"
X Link 2023-11-29T13:24Z 10K followers, [--] engagements

"Consider PM2.5 spikes due to wildfires. We adapt to this threat by being aware a day ahead that the smoke is floating over. We stay inside on those days and run air filter equipment and keep better windows closed. Protective clothing could be worn. Not passive victims"
X Link 2023-11-29T13:26Z 10K followers, [---] engagements

"This is overly dramatic. As insurers engage in climate risk pricing home prices will decline in areas where insurance prices rise. Private equity funds will buy these properties as they can self insure. They will rent out such housing to residents. (1/2)"
X Link 2023-11-30T02:44Z 10K followers, [---] engagements

"Theres an Easy Way to Protect Your Home from Wildfire Smoke"
X Link 2023-11-30T13:44Z 10K followers, [---] engagements

"Very interesting work. In an increasingly risky world is betting your savings on a single asset located in a specific city and neighborhood a wise bet In my [----] book Adapting to Climate Change I argue that more of us should be renters going forward"
X Link 2023-11-30T17:58Z 10K followers, [----] engagements

"Renters can invest their $ in a more diversified set of assets and hold a real option to migrate at lower cost. Yes renters face rent volatility but what if they could sign medium term contracts Home owners are "amateurs". Renters rent from professional management firms"
X Link 2023-11-30T18:02Z 10K followers, [--] engagements

"The real estate sector will be better able to adapt to climate change if professional managers manage place based assets. Such entities have the data the capital and the incentives to anticipate and adapt to emerging risks. Grossman and Hart's residual control model applies"
X Link 2023-11-30T18:04Z 10K followers, [---] engagements

""Old" products such as a McDonald's Big Mac are refreshed over time due to competition. This tweet provides examples of product upgrades that increase consumer surplus. How do IO economists measure such the gains from quality upgrading"
X Link 2023-12-01T14:19Z 10K followers, [----] engagements

"Great quotes from my colleague @Marlon_Boarnet . His quote poses a new research question. With the rise of electric vehicles areas will collect less gas tax revenue. Will they respond by introducing road pricing Could Musk cause economic efficiency"
X Link 2023-12-02T14:54Z 10K followers, [---] engagements

"Here is my contribution to the politics of road pricing. I make a salience point as I argue that the rise of Uber and ride-sharing contributes to the adoption of road pricing because the rider doesn't "pay" the road charge out of pocket"
X Link 2023-12-02T14:59Z 10K followers, [---] engagements

"An interesting article. Economists who endorse a Social Cost of Carbon at $190 a ton of carbon dioxide should explain to the public where this $ number comes from. What is this "climate damage function" What microeconomic logic generates this number"
X Link 2023-12-02T17:07Z 10K followers, [---] engagements

"IAM Models simply assume a convex climate damage function. Such reduced form SCC models can't take the "heat" of the Lucas Critique. I want to see more economists write down micro-founded models that generates an endogenous Social Cost of Carbon"
X Link 2023-12-02T17:15Z 10K followers, [---] engagements

"Stonehenge West"
X Link 2023-12-02T23:20Z 10K followers, [---] engagements

"Suppose the world warms by 1.6C or 2C what happens to mortality risk quality of life and economic performance for poor people in every nation around the world This is an important economics question. The answer hinges on urbanization human capital and market access"
X Link 2023-12-03T13:48Z 10K followers, [---] engagements

"Urbanization and skill acquisition go hand in hand. Nations that feature a system of cities offer a menu of alternatives to farmers seeking to diversify against new risks. Climate change will accelerate the urbanization process and this contributes to long run economic growth"
X Link 2023-12-03T13:55Z 10K followers, [---] engagements

"My [----] Climatopolis book explores the assignment problem of how cities compete for jobs and people as climate change shocks local areas. Real estate prices adjust to compensate those who face greater placed risk. Basic Economic and finance logic"
X Link 2023-12-03T13:58Z 10K followers, [---] engagements

"Some adaptation optimism from the @latimes"
X Link 2023-12-05T13:25Z 10K followers, [---] engagements

"For those economists seeking to read something featuring twists and turns take a look at this piece in the Review of Political Economy. "Nobel Rebels in Disguise Assessing the Rise and Rule of the Randomistas" https://www.tandfonline.com/doi/full/10.1080/09538259.2020.1810886casa_token=8xJzANG3C-8AAAAA%3Aif1QQtsl1oUFkMpiZLeTy5rx7l6PPgOVxa2DOAnQipTFC85oDh6FTCOGYW2ubtw5kNPENVVM_pF80AE https://www.tandfonline.com/doi/full/10.1080/09538259.2020.1810886casa_token=8xJzANG3C-8AAAAA%3Aif1QQtsl1oUFkMpiZLeTy5rx7l6PPgOVxa2DOAnQipTFC85oDh6FTCOGYW2ubtw5kNPENVVM_pF80AE"
X Link 2023-12-06T13:59Z 11.2K followers, [---] engagements

"I recently gave a talk at @HooverInst titled; "Climate Change Adaptation: Lessons from Free to Choose". Based on the seminar discussion I have revised my @SSRN paper"
X Link 2023-12-06T20:25Z 10K followers, [---] engagements

"I enjoyed presenting my optimistic thoughts about the microeconomics of climate change adaptation at this feisty lunch"
X Link 2023-12-06T20:26Z 10K followers, [---] engagements

"Improved cross-state transportation and the rise of hybrid/WFH work both increase the likelihood that the tax base will flee high tax/low quality service areas. Can California continue to rely on its great amenities to anchor the rich on its coast"
X Link 2023-12-07T22:03Z 10.5K followers, [---] engagements

"Here is a Brueckner and Neumark paper that I like https://www.nber.org/papers/w16797 https://www.nber.org/papers/w16797"
X Link 2023-12-07T22:04Z 10.6K followers, [---] engagements

"What is the resale price today for a cdrom containing the December [----] AER contents"
X Link 2023-12-08T19:36Z 10K followers, [---] engagements

"We will continue to prosper in the face of climate change risk through a combination of mitigation adaptation geo-engineering and by trying and experimenting with different carbon capture strategies. Why is pessimism so alluring"
X Link 2023-12-09T18:14Z 10K followers, [---] engagements

"A Substack column discusses my recent co-authored Climate Finance paper joint with @chongshu_econ and John Matsusaka. Our paper is titled; "Divestment and Engagement: The Effect of Green Investors on Corporate Carbon Emissions""
X Link 2023-12-13T13:47Z 10K followers, [---] engagements

"Has an economist written a paper on how co-authors agree on a paper's title @Siqi_MIT Wen-Chi Liao and I are close to having a new draft. I am going to propose the following "subtle" title. "Did Donald Trump Cause an Urban Manufacturing Boom in Northern Vietnam""
X Link 2023-12-13T15:10Z 10K followers, [---] engagements

"We can crowd source our paper's title Here are some options; A. Tariff Wall Jumping at the China-Vietnam Border B. Trump Tariff Avoidance Stimulates Urban Economic Growth at the Vietnam-China Border C. Trumps Tariff Accelerates Urban Economic Growth at the Vietnam-China Border"
X Link 2023-12-13T15:15Z 10K followers, [---] engagements

"Modular housing leads to a more "elastic" housing supply curves. The unhoused could be housed at lower cost and more people would have access to more affordable housing. "Time to Build" continues to be an issue in the housing market. (1/2)"
X Link 2023-12-18T12:33Z 10K followers, [---] engagements

"Very interesting New research should study a [--] step dynamic program. Matt chooses a metro area as he moves from Boston to Los Angeles. Once in LA he chooses to move to Westwood. Once he lives on Warner Avenue he upgrades his home anticipating place based shocks. 1/2"
X Link 2023-12-18T13:17Z 10K followers, [----] engagements

"Note the almost infinite adaptation permutation strategy set here. Climate economists continue to ignore this point. Matt knows his own risk aversion and his life goals and his budget constraint. In a Becker Household Production model Matt optimally trades off resilience"
X Link 2023-12-18T13:20Z 10K followers, [---] engagements

"Changes in zoning codes (i.e upzoning along the California beach) improvements in resilience products all increase the adaptation production possibility frontier. One's choice of county is merely the start of the "adaptation game""
X Link 2023-12-18T13:22Z 10K followers, [---] engagements

"@LabricotierTr You raise an important point. In this [----] book some brilliant economists argue that homeowners would benefit from jointly owning their home with private equity (PE) firms. You could sell PE 1/2 of your home and You would live there. (1/2)"
X Link 2023-12-18T13:36Z 10.3K followers, [--] engagements

"@LabricotierTr Contract economists and climate economists do not interact with each other. This is a shame because new contract designs will accelerate adaptation. Private equity firms are diversified and can self-insure even if there is no "market insurance" in fire and flood zones"
X Link 2023-12-18T13:37Z 10K followers, [--] engagements

"My new Substack column examines the consequences of melting ice on Mount Everest. As climbing risk rises how do hikers adapt What is their lost consumer surplus as this distinct differentiated product's attributes shift (i.e death risks rises)"
X Link 2023-12-19T15:38Z 10K followers, [---] engagements

"I subscribe to @BusinessInsider because it blends People magazine material with Wall Street Journal material. A thread about this recent article titled; "Remote Work Stifles Innovation.""
X Link 2023-12-19T17:16Z 10K followers, [---] engagements

"The Laffer Curve and California taxation @joshrauh work is cited here. If California responds to the large deficit by raising taxes on high earners will revenue decline further #WFH increases the "exit probability""
X Link 2023-12-20T02:20Z 10K followers, [---] engagements

"We adapt to what we anticipate. Evidence; an Iceland Volcano erupts in [----] and elevates SO2 levels. "Absence of public advisories is associated with increases in visits to primary care medical doctors and to the hospital emergency department." https://www.nature.com/articles/s41467-021-22432-5 https://www.nature.com/articles/s41467-021-22432-5"
X Link 2023-12-20T17:05Z 11.2K followers, [---] engagements

"As I skim this paper I do not see a discussion of the cost per acre of implementing this "scaffold". The researchers should partner with economists to study how different farmers will respond to an offer to adopt this approach. This cost will decline over time. Why Boskin"
X Link 2023-12-27T16:43Z 10.3K followers, [---] engagements

"A theme in my recent adaptation work is that the logic of the Boskin Report is missing from modern climate economics. Too many economists assume stationarity when they write down damage production functions. New goods shift our adaptation production possibility frontier"
X Link 2023-12-27T16:45Z 10.3K followers, [---] engagements

"Progress or regress A Rorschach Test A housing development in Los Angeles signals the end of most of the San Fernando Valleys last working citrus grove"
X Link 2023-12-28T05:32Z 10.3K followers, [---] engagements

"This is a very interesting meta-analysis of a key public policy question. A brief thread about the role of urban public sector teachers unions in raising the "producer price index" and restricting the feasible substitution set (isoquant combinations) for local schools. Delighted that this project with @c_mackevicius is out in print. It is a good-faith effort to present the facts and even school-spending skeptics agree with the conclusions. We believe it can help the policy conversation evolve. https://t.co/YaHKiVZMLC Delighted that this project with @c_mackevicius is out in print. It is a"
X Link 2023-12-28T14:48Z 11.2K followers, [----] engagements

"Our [----] Journal of Public Economics paper sketches out my thinking. Our paper focuses on the role of public sector unions in raising the cost of public transit agencies in providing local bus service. The same idea applies here"
X Link 2023-12-28T14:51Z 10.3K followers, [----] engagements

"The Meta-Analysis cites one union paper that finds that school districts with strong unions use new exogenous inflows of state aid to pay teachers better AND this leads to better outcomes for students. That's interesting"
X Link 2023-12-28T14:56Z [----] followers, [---] engagements

"Some urban San Francisco optimism from the New York Times features a good quote from Richard Florida. Back in the summer of [----] I worked at @PPICNotes and enjoyed my time close to the Pyramid Building"
X Link 2023-12-28T16:54Z 10K followers, [----] engagements

"Robert Huang and I wrote a fun paper measuring the pollution externality from local government provision of transportation services. Our work helps to understand what tax should the government charge its self"
X Link 2023-12-29T15:18Z 10.3K followers, [---] engagements

"Amine Ouazad and I posted a SSRN paper that examines how the GSE's "rules of the game" affect mortgage finance dynamics in the midst of natural disaster shocks. What are the incentives of lenders to build up climate risk management expertise"
X Link 2023-12-29T15:23Z 10.3K followers, [---] engagements

"@erikbryn High quality universities help to pin down where the stars live. Enrico's old paper presents evidence here;"
X Link 2023-12-30T15:55Z [--] followers, [--] engagements

"@erikbryn The rise of Las Vegas and Phoenix highlights how new cities can emerge that offer a distinctive quality of life through synergies between warm winters and fun. The rise of Seattle shows the role of superstar firms (Amazon Microsoft) in driving overall economic growth"
X Link 2023-12-30T15:57Z 10.3K followers, [--] engagements

"@ChrisPhelanEcon Our recent NBER paper explores how Public Pension plan share ownership in fossil fuel firms (think of Exxon) is associated with the emissions dynamics for such firms. Exit versus Voice revisited"
X Link 2023-12-30T16:52Z 10.3K followers, [---] engagements

"The last chapter of my [----] WFH/urban economics book is titled; "The New New Geography of Jobs". Urban economists who studied (and celebrated) Superstar Cities didn't devote enough attention to the costs of concentrating economic opportunity in a few points on the map"
X Link 2023-12-31T14:41Z 10.3K followers, [---] engagements

"Here is my blog post about my [----] book. Competition increases everyone's menu of opportunities. Competition leads those who may face an "Urban Doom Loop" to take a sober look at how to improve local quality of lfie"
X Link 2023-12-31T14:45Z [--] followers, [---] engagements

"@haroldpollack Harold and I were introduced to each other by Mark Kleiman as we both wrote entries for Mark's great "Same Facts" blog. I am shocked that Google no longer lists it. Have all of our blog entries simply vanished"
X Link 2024-01-03T18:19Z 10.3K followers, [--] engagements

"@haroldpollack When I click on Keith's link I end up in "domain hell". Where is the RBC The Reality-Based Community Blog founded by Mark Kleiman is closing down after [--] years. Some reflections here on Mark as a blogger: https://t.co/wOMrwxRxn7 The Reality-Based Community Blog founded by Mark Kleiman is closing down after [--] years. Some reflections here on Mark as a blogger: https://t.co/wOMrwxRxn7"
X Link 2024-01-03T18:19Z 10.3K followers, [--] engagements

".@haroldpollack I started to write a tweet about how Mark Kleiman introduced us as we both wrote entries for the Reality Based Community blog. It appears that our blog has vanished from the world. Am I wrong When I click on Keith's link I vanish The Reality-Based Community Blog founded by Mark Kleiman is closing down after [--] years. Some reflections here on Mark as a blogger: https://t.co/wOMrwxRxn7 The Reality-Based Community Blog founded by Mark Kleiman is closing down after [--] years. Some reflections here on Mark as a blogger: https://t.co/wOMrwxRxn7"
X Link 2024-01-04T00:15Z 10.3K followers, [----] engagements

"When I taught at UCLA I was invited to blog both for Legal Planet (I was a law professor at UCLA) and for the RBC blog. Let's just say that not everybody appreciated my perspective and comment writers kept asking me to "migrate away""
X Link 2024-01-04T00:19Z [--] followers, [---] engagements

"I will be in Manhattan on Thursday to conduct some field research on whether local quality of life is improving. I will buy a print copy of the NY Post and eat a slice of pizza in Central Park and speak to a representative sample of local residents"
X Link 2024-01-07T23:32Z 10.3K followers, [----] engagements

"Here is my written testimony from today's U.S Senate Hearing. We discussed whether climate change is a major challenge for the U.S municipal bond market"
X Link 2024-01-11T01:38Z 10.3K followers, 23.4K engagements

"Can satellite cities help solve Africas urbanisation challenges from The Economist"
X Link 2024-01-16T03:01Z 10.3K followers, [---] engagements

"A sane summary of our January 10th [----] Senate Budget Hearing. Climate change adaptation raises classic "investment under uncertainty" issues at the heart of the 1970s Rational Expectations Revolution. Forward looking humble investors adapt"
X Link 2024-01-16T13:09Z [--] followers, [---] engagements

"When confronted with a "known unknown" sane investors proceed cautiously using risk diversification strategies and seeking out real options (Dixit) so they can reoptimize later as they learn about emerging risks and as the adaptation product menu expands (Boskin)"
X Link 2024-01-16T13:10Z 10.3K followers, [---] engagements

"@YujungHwang3 I know an international born academic who was asked at our Border to demonstrate that he was a genius. My modest friend was slightly taken aback by this request to demonstrate my friend's visa status"
X Link 2024-01-16T18:28Z 10.3K followers, [----] engagements

"Professor Epstein and I both like to talk a lot. He taught at USC for [--] years from [----] to [----]. I am trying to encourage him to return"
X Link 2024-01-18T14:45Z 10.3K followers, [----] engagements

"Wildfire risk mitigation research progress accelerates adaptation. IAM models assume no learning no experimentation as passive victims just suffer"
X Link 2024-01-19T16:44Z 10.3K followers, [---] engagements

"In my new #substack column I link my work to a recent piece by @lee_ohanian How Does California's Huge Budget Deficit Hinder Climate Change Adaptation Investment"
X Link 2024-01-21T14:43Z 10.4K followers, [--] engagements

"Siqi Zheng will present our new paper that merges ideas from urban and international economics to study jumping Tariff Walls at the China/Vietnam Border"
X Link 2024-01-21T15:32Z 10.3K followers, [----] engagements

"I spent a few days at @HooverInst last week. Frank Wolak (an economist you will not find on Twitter) introduced me to Kurt Sweat. Here is Kurt's webpage. He sketched out his JMP paper to me and I learned some economics from him. @KurtSweat1"
X Link 2024-01-21T20:00Z 10K followers, [----] engagements

"Adapting to Rising Insurance Prices in Wildfire Zones in the American West"
X Link 2024-01-24T14:33Z 10.3K followers, [---] engagements

"I claim that the answer is tied to the lack of political competition in Big City elections. Free market candidates never win as public union $ dominates the process. The urban monopolist provides low quality expensive local public goods. The rich flee to the suburbs"
X Link 2024-01-26T15:52Z 10.3K followers, [---] engagements

"Imagine if Donald Bren was the CEO of the City of Los Angeles. Imagine if he faced a constraint that he must house the unhoused and provide transport for them. Would his "LA" look like the current LA"
X Link 2024-01-26T15:57Z 10.3K followers, [---] engagements

"I agree. Non-linear Water pricing can be used to encourage conservation while protecting the poor against "price gouging". We discuss this in this piece. California residential water use is about 5% of annual rainfall. CA regulators plan to spend tens of billions of $ to reduce residential water use by just 5%. Back in the day CA's state government innovated to deal with scarcity. No longer. https://t.co/51JzBck5KL California residential water use is about 5% of annual rainfall. CA regulators plan to spend tens of billions of $ to reduce residential water use by just 5%. Back in the day CA's"
X Link 2024-01-27T22:25Z 10.3K followers, [----] engagements

Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing