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[@paulnovosad](/creator/twitter/paulnovosad)
"@alz_zyd_ If you read a book and then talk with ChatGPT you will get more knowledge and more useful brain exercise than if you just skip to talking with ChatGPT. You might at first feel like you learned just as much though"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1945888740188082184) 2025-07-17 16:50:03 UTC 22.8K followers, XX engagements


"There is *so much* variation even across Europe on which immigrants come in and how their children do. Figure (Boustan et al) shows rank gap vs. native-born for immigrants and their children. One of the richest graphs around. What is going on here 1/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206115668144136) 2025-07-18 13:51:11 UTC 23K followers, 42.8K engagements


"Why are immigrant kids so downwardly mobile in Austria HollandDaughters of immigrants converge to the mean in one generation sons stay very poor. Why Highest mobility engines are France and Sweden. Immigrants do well in UK and USA but arrive with more skills too. 2/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206118172045526) 2025-07-18 13:51:11 UTC 22.7K followers, 1879 engagements


"So I'm not yet convinced these are causal effects of place. But the descriptive results are super interesting and the starting point for asking why selection and outcomes are so different across places. 8/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206130478174369) 2025-07-18 13:51:14 UTC 22.9K followers, 1540 engagements


"The authors say that sending country doesn't explain much of the variation we see here that there's high upward mobility in Canada and low in Austria whether you come from Morocco Yugoslavia or Turkey. But it feels like something you'd want to hold constant throughout. 6/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206126208323914) 2025-07-18 13:51:13 UTC 22.9K followers, 1263 engagements


"I hope there is a big data release when this paper gets published (or sooner) as it seems like a lot more to study here. Paper is Boustan et al. 2025 link here List of authors: /N"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206132189401389) 2025-07-18 13:51:15 UTC 22.8K followers, 1562 engagements


"I remain unpersuaded that ideas are harder to find because we should not expect spending on research to have constant marginal returns. As semiconductor R&D grows firms are hiring worse and worse researchers to fill marginal slots. As chips are less on the cutting edge top researchers look elsewhere. In the economy as a whole many people employed in R&D are optimizing ad revenue or doing stupid things with no value at all. If we want to get more successful research it's possible we should care more about easing the constraints of the top scientists and less about getting more and more"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946181487583461800) 2025-07-18 12:13:19 UTC 22.9K followers, 19K engagements


"I would be curious to see it broken down by sending region. It seems relevant for policy immigrants from Western Europe Eastern Europe and LMICs feel like important different categories to me. 5/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206124203549096) 2025-07-18 13:51:13 UTC 22.8K followers, 1455 engagements


"The most essential stabilizing feature of a society is a status hierarchy that young peopleespecially young mencan reliably climb by following a clear and pro-social set of rules. 1/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1947679736609837171) 2025-07-22 15:26:50 UTC 23K followers, 223.2K engagements


"Cash transfers are not having the effects that the advocates said they would have"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1947309546759741617) 2025-07-21 14:55:49 UTC 23K followers, 37.2K engagements


"It seems hard to separate place effects from selection effects if Austria is very bad for immigrants then even after controlling for education it's probably the case that the set of high-education immigrants choosing Austria is different from those choosing Canada. 7/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1946206128699846907) 2025-07-18 13:51:14 UTC 23K followers, 1101 engagements


"Meme #2 (low return to hard work) is mostly wrong. But most true for the humanities classjournalists writers meme-makers. Their industry was most disrupted by the tech revolution and will be again by AI. And they've convinced too many people that its true for everyone. 6/"  
![@paulnovosad Avatar](https://lunarcrush.com/gi/w:16/cr:twitter::470696317.png) [@paulnovosad](/creator/x/paulnovosad) on [X](/post/tweet/1947679745488916787) 2025-07-22 15:26:52 UTC 23K followers, 13.8K engagements