Best of #econtwitter - Week of May 16, 2021
Welcome readers old and new to this week’s edition of Best of Econtwitter. Thanks to those sharing suggestions, over email or on Twitter @just_economics.
Paper summary threads
Do wealthier households save a larger share of their incomes than poorer ones?
I suspect most people's prior is that the answer is "yes." Turns out that's incorrect, or rather: things are considerably more subtle, at least in our Norwegian wealth tax registry data.
A short 🧵:
We use social security records to track work patterns during the staggered roll-out of television broadcast towers🗼across the US. Government priority rules led to quasi-random variation in TV exposure across towns. What happened in treated towns? 3/7
Workers close to retirement are by far the most responsive, while effects on prime-aged workers are modest. We find that cheap round-the-clock entertainment led to a substantial increase in retirement rates but not much change elsewhere. What’s the takeaway? 5/7
One recent paper that's substantially influenced my thinking is German Gutierrez & @so_piton: "Revisiting the Global Decline of the (Non-Housing) Labor Share"
The headline: (non-housing) labor shares have *not declined* in any major advanced economies except the US and Canada 🧵
🚨🚨WORKING PAPER ALERT🚨🚨
"Competition in the Black Market: Estimating the Causal Effect of Gangs in Chicago"
Read this thread to learn how I obtained 15 years of gang maps from the Chicago PD and used them to study how gangs influence neighborhoods 1/N
Brown Economics @Brown_Economics
^a map here
We replied to 2000 users' tweets of false info with a fact-checking link. What effect did this have?
Not exactly what we had hoped:
Mohsen Mosleh @_mohsen_m
MIT researchers 'infiltrated' a Covid skeptics community a few months ago and found that skeptics place a high premium on data analysis and empiricism.
"Most fundamentally, the groups we studied believe that science is a process, and not an institution."
arxiv.org/pdf/2101.07993…
India's ICDS is the world's largest early-childhood development program. In a new @nberpubs WP bit.ly/2QYgTjl, @aganimian @c_r_walt & I show with a large-scale RCT that adding a worker to ICDS centers improved education, and nutrition, and was highly cost effective 🧵1/
A 4-yr old who randomly won a seat in Boston preschool:
-⬆️likelihood of graduating HS (6 p.p.)
-⬆️likelihood of attending college (5.4 p.p.)
-⬇️suspensions and likelihood of juvenile incarceration
-⬆️likelihood of SAT above bottom quartile.
nber.org/papers/w28756
I have a paper with @sarapfmoreira and Dave Piccone in this AEA P&P! “The Life Cycle of Businesses and Their Internal Organization” examines the managerial composition of 1.8 million U.S. establishments “born” since 1992. 1/5
AEA Journals @AEAjournals
Very happy to have this article come out in @AEAjournals Papers & Proceedings!
The session, "Long-Term Effects of Early Life Outcomes", was joint with two great papers by Ashna Arora + @urfriendlen + @HjortJ and @SteveRo48195125 + Patralekha Ukil 1/n
Do high-stakes exams promote consistent educational standards?
New working paper + blog post with @jrossiter0 @mabrehkojo and @aishadanali, looking at exams taken by millions of students across West Africa.
cgdev.org/publication/do…
cgdev.org/blog/can-ghana…
1/
Thrilled to see this paper (finally) coming out! Below is a short summary. 1/5
The Review of Economic Studies @RevEconStud
More: labor market power; government debt maturity management; MP transmission; immigration restrictions and patents; unemployment and entrepreneurship; graphics in applied econ papers; synthetic control; Craiglist and local newspapers
Meta
Apostolos Filippas and John Horton develop a model of econtwitter matching some stylized facts (and predicting some new ones) in a way that will be striking to econtwitter regulars:
Luke Stein does an ex post video discussion, linked here
Public goods
(1/2) Knowledge base on deep learning methods for data curation is up: dell-research-harvard.github.io/blog.html Covers methods from computer vision and NLP. I found it overwhelming at first to tackle the vast DL lit, hope links to resources for getting started will be of potential use to others
Interesting discussions
Yes. I landed a job offer based on positive impressions of my work on a referee at the QJE. The paper was rejected, but that apparent "failure" turned out to be quite fortuitous!
Joshua Goodman @JoshuaSGoodman
Here’s a thing I didn’t realize in grad school about doing theory: Your role in research can stay the same for most of your career. In some other econ fields, assistant professors get ‘promoted’ to a more managerial role, overseeing a team that does the late-PhD stuff. 🧵