Best of #econtwitter - Week of July 24, 2022 [1/4]
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.
This is part one of four.
Paper summaries
![Twitter avatar for @MTabarrok](https://substackcdn.com/image/twitter_name/w_96/MTabarrok.jpg)
Fellow denizens of #EconTwitter may have seen this tweet going around a few days ago claiming the end of Arrow's Theorem, Here a tweet thread explaining why it's basically not true. Also in blog form!
maximumprogress.substack.com/p/arrows-impos…
![Twitter avatar for @k_sonin](https://substackcdn.com/image/twitter_name/w_40/k_sonin.jpg)
Konstantin Sonin @k_sonin
^TLDR: Borda count avoids vote-splitting (i.e., under a fixed slate) but still has the cloning problem. Extremely good substack
![Twitter avatar for @MatthewGNagler](https://substackcdn.com/image/twitter_name/w_96/MatthewGNagler.jpg)
🚨🚨 New working paper alert!🚨🚨 “Advertising and Self-Persuasion.” Short thread 👇 with an overview. 1/n Link to paper here: mnagler.ccny.cuny.edu/research/adjus…
![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%2FFYQu45qX0AAtv8B.png)
![Twitter avatar for @jon_mellon](https://substackcdn.com/image/twitter_name/w_96/jon_mellon.jpg)
Update to my weather IV paper. IV assumes effect of instrument on Y works only through instrumented variable X. But scientists have linked weather to 192 variables, which makes exclusion restriction assumption implausible. This plot is just for rainfall:
osf.io/preprints/soca…
![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%2FFYBhL09X0AAMZJr.jpg)
![Twitter avatar for @colin_fraser](https://substackcdn.com/image/twitter_name/w_96/colin_fraser.jpg)
Someone on here (I forget who I'm sorry) linked to this paper and it derives this statistical identity that is completely mind blowing and I want to tweet about it.
bias = data quality × data quantity × problem difficulty
statistics.fas.harvard.edu/files/statisti…
![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%2FFYC7kq5UIAE_1Yt.png)
![Twitter avatar for @JustinSandefur](https://substackcdn.com/image/twitter_name/w_96/JustinSandefur.jpg)
Is Duflo (2001) robust?
@davidroodman kicks the tires on perhaps the most influential study on the value of education for development.
arxiv.org/abs/2207.09036
![Twitter avatar for @hmmlowe](https://substackcdn.com/image/twitter_name/w_96/hmmlowe.jpg)
Why are there so many small-scale vendors in developing country cities?
Some new evidence with Banerjee, @GregFisch, @deankarlan, @BenRothEcon: mattlowe.site/wp-content/upl… 1/
Public goods
![Twitter avatar for @bartonwillage](https://substackcdn.com/image/twitter_name/w_96/bartonwillage.jpg)
I posted a slide I share w/ students of orgs that hire econ undergrads. Some asked for the slide, some suggested places. I am more seriously gathering this (bartonwillage.com/pages/Jobs.html).
Send suggestions.
If someone else has already done this, pls let me know.
![Twitter avatar for @jeremy_lebow](https://substackcdn.com/image/twitter_name/w_96/jeremy_lebow.jpg)
1/3 Last year @DukeEcon PhD students launched the Graduate Mentorship Program – an opportunity for people from under-represented backgrounds in Economics to get advice on the PhD application process from current PhD students. This year it’s back! The deadline to apply is Aug 25
![Twitter avatar for @sarahraviola](https://substackcdn.com/image/twitter_name/w_40/sarahraviola.jpg)
Sarah Raviola @sarahraviola
^believe there’s a Harvard-MIT program like this too, but lost the link
![Twitter avatar for @MacroFinanceLab](https://substackcdn.com/image/twitter_name/w_96/MacroFinanceLab.jpg)
We are very happy to announce that the JST Macrohistory Database is now updated with annual data until 2020! It contains long-run macroeconomic and financial series for 18 advanced economies starting in 1870! A 🧵 on the major updates:
macrohistory.net/database/
#EconTwitter
![Twitter avatar for @KwekuOA](https://substackcdn.com/image/twitter_name/w_96/KwekuOA.jpg)
@emmarackstraw Hey Emma, Good job. Well, here's a short implementation for one event study per each DiD approach:
R version (see page 8):
kylebutts.com/files/did2s_ar…
Stata version: github.com/kylebutts/did2…
Hope it helps, for future work, all best.
![](https://substackcdn.com/image/fetch/w_600,h_314,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F84886af2-0944-4e87-92f8-082adfde9f27_1200x600.png)
![Twitter avatar for @CedricChambru](https://substackcdn.com/image/twitter_name/w_96/CedricChambru.jpg)
Very happy to share the new update of the Historical Social Conflict Database, which now includes more than 20,000 events between 1100 and 1900:
unicaen.fr/hiscod
@pmaneuvre @MrshCaen
![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%2FFYGjuvhWAAIrT3r.jpg)
Interesting discussions
![Twitter avatar for @kleintob](https://substackcdn.com/image/twitter_name/w_96/kleintob.jpg)
#EconTwitter:
I wish I had seen this one-pager 📄 on how to write excellent papers while I was doing my Ph.D.: scholar.harvard.edu/files/shapiro/…
Jesse Shapiro suggests doing this in 4 steps.
Here is a summary. 🧵