Best of #econtwitter - Week of February 19, 2023: interesting tweets
Welcome readers old and new to this week’s edition of Best of Econtwitter. Please submit suggestions — very much including your own work! — over email or on Twitter @just_economics.
Belated edition this week!
Interesting discussions
![Twitter avatar for @ShengwuLi](https://substackcdn.com/image/twitter_name/w_96/ShengwuLi.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFox0l4GXoAE9jZC.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFox0pUlWcAYcyRP.jpg)
^really too bad substack cuts off the images so you can’t see the images — but you can click through
![Twitter avatar for @alexoimas](https://substackcdn.com/image/twitter_name/w_96/alexoimas.jpg)
![Twitter avatar for @ShengwuLi](https://substackcdn.com/image/twitter_name/w_40/ShengwuLi.jpg)
^more on predocs in the next section…
![Twitter avatar for @nikir1](https://substackcdn.com/image/twitter_name/w_96/nikir1.jpg)
![Twitter avatar for @emollick](https://substackcdn.com/image/twitter_name/w_96/emollick.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo-lHBpXoAA1qs_.png)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo-nAxjWYAErk8O.jpg)
![Twitter avatar for @camjpatrick](https://substackcdn.com/image/twitter_name/w_96/camjpatrick.jpg)
![Twitter avatar for @I4Replication](https://substackcdn.com/image/twitter_name/w_96/I4Replication.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo75GubXoAAqzJD.jpg)
![Twitter avatar for @ben_golub](https://substackcdn.com/image/twitter_name/w_96/ben_golub.jpg)
^(see replies)
![Twitter avatar for @abiylfoyp](https://substackcdn.com/image/twitter_name/w_96/abiylfoyp.jpg)
![Twitter avatar for @_LukasFreund_](https://substackcdn.com/image/twitter_name/w_96/_LukasFreund_.jpg)
Predocs
![Twitter avatar for @pengpeng_xiao](https://substackcdn.com/image/twitter_name/w_96/pengpeng_xiao.jpg)
![Awesome Rock And Roll GIF](https://substackcdn.com/video/upload/e_loop,vs_40/f5rehgojel3weqgghdoq.gif)
^this tweet sparked a lot of …discussion…
![Twitter avatar for @asv141](https://substackcdn.com/image/twitter_name/w_96/asv141.jpg)
![Twitter avatar for @pengpeng_xiao](https://substackcdn.com/image/twitter_name/w_40/pengpeng_xiao.jpg)
![Twitter avatar for @ShengwuLi](https://substackcdn.com/image/twitter_name/w_96/ShengwuLi.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo9LCRHWIAIMdbO.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo9LCRKWIAMzx4A.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo9LCRKWcAEHsed.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFo9LCRIWIAovh4B.jpg)
![Twitter avatar for @HundredChiltern](https://substackcdn.com/image/twitter_name/w_96/HundredChiltern.jpg)
^this is an aside but: I have noted before in this newsletter that the referenced Conley and Onder (2014, JEP) is based on data from 1986-2000, and someone needs to update it. Publishing patterns have changed, norms/expectations have changed, the duration of grad school has increased by 50%, students are more likely to coauthor with their advisors… and that’s all besides the rise of predocs in the last decade
![Twitter avatar for @FairyCalvo](https://substackcdn.com/image/twitter_name/w_96/FairyCalvo.jpg)
![Twitter avatar for @ashdgandhi](https://substackcdn.com/image/twitter_name/w_96/ashdgandhi.jpg)
![Twitter avatar for @ashdgandhi](https://substackcdn.com/image/twitter_name/w_40/ashdgandhi.jpg)
![Twitter avatar for @IvanWerning](https://substackcdn.com/image/twitter_name/w_96/IvanWerning.jpg)
![Twitter avatar for @lugaricano](https://substackcdn.com/image/twitter_name/w_96/lugaricano.jpg)
![](https://substackcdn.com/image/fetch/w_600,h_314,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F952202c1-42f5-4f3d-9211-84e43d0c5c89_625x625.png)
![Twitter avatar for @t_holden](https://substackcdn.com/image/twitter_name/w_96/t_holden.jpg)
![Twitter avatar for @ashdgandhi](https://substackcdn.com/image/twitter_name/w_96/ashdgandhi.jpg)
![Twitter avatar for @Afinetheorem](https://substackcdn.com/image/twitter_name/w_96/Afinetheorem.jpg)
![Twitter avatar for @ZachLevinTweets](https://substackcdn.com/image/twitter_name/w_96/ZachLevinTweets.jpg)
![Twitter avatar for @josh_t_dean](https://substackcdn.com/image/twitter_name/w_96/josh_t_dean.jpg)
The big picture on all this stuff is that the time it takes to become a scientist is increasing in all fields (graphs): the “burden of knowledge”. This isn’t just about econ