Best of #econtwitter - Week of January 2, 2022 [1/2]

Jan 03, 2022

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.

This is part one of two. Part two is here.

Paper summary threads

Ron Berman@marketsensei

How are effects of online A/B tests distributed? How often are they not significant? Does achieving significance guarantee meaningful business impact? We answer these questions in our new paper, “False Discovery in A/B Testing”, recently out in Management Science >>

8:48 PM · Jan 1, 2022

196 Reposts · 1.16K Likes

Ron Berman@marketsensei

First, we analyze the effects of all the A/B tests in our data. They are quite small. The median (and average) webpage variations have roughly zero effect on webpage Engagement. But the distribution is quite long-tailed with some variations showing big effects. >>

8:48 PM · Jan 1, 2022

3 Reposts · 42 Likes

^data from online platform Optimizely. Implications for statistical significance bias

Otis Reid@otis_reid

Entering 2022 feels like a good time to tweet a thread on a very cool paper by my wife Christina Patterson & co-auths @JADHazell, Heather Sarsons & @Bledi_Taska on the huge prevalence of national wage setting (firms setting ~same wage in all locations) drive.google.com/file/d/1_zB9hM…

7:42 PM · Dec 29, 2021

15 Reposts · 62 Likes

Jacob Robbins@thesugar

Very interesting new paper from @paulkrugman on fiscal vs monetary policy to combat secular stagnation. The main tradeoff is that fiscal policy may crowd out investment, while inflation may have large social costs.

gc.cuny.edu

3:40 PM · Dec 30, 2021

2 Reposts · 3 Likes

^another thread on the same paper from Luca Fornaro

Diego Känzig@drkaenzig

Super excited to share that our paper "Capital and income inequality: an aggregate-demand complementarity", with @FlorinBilbiie and Paolo Surico, has been accepted at the 𝗝𝗼𝘂𝗿𝗻𝗮𝗹 𝗼𝗳 𝗠𝗼𝗻𝗲𝘁𝗮𝗿𝘆 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝗰𝘀! Accepted version via dkaenzig.github.io/diegokaenzig.c…

11:43 AM · Dec 29, 2021

35 Reposts · 399 Likes

Lucas Herrenbrueck@LHerrenbrueck

Happy New Year #EconTwitter! One thing I'm very grateful to 2021 for is that my and @ThanasisGeromi1's "Liquidity-Augmented Model" got published in @RevEconDyn. Want a formal DSGE model where fiscal and monetary policy interact, prices are... 1/

Review of Economic Dynamics @RevEconDyn

What are the macroeconomic foundations of liquidity? Find out in our forthcoming paper "The liquidity-augmented model of macroeconomic aggregates: A New Monetarist DSGE approach" by Geromichalos and @LHerrenbrueck! https://t.co/CFAVyRTjSj

8:28 PM · Dec 31, 2021

4 Reposts · 15 Likes

Steve Cicala@SteveCicala

There's an important paper on automation and inequality out today in AEJ:Macro. It's elegant, it has kickstarted research on automation, and yet it's also under-appreciated. So here's an appreciation thread:

6:30 PM · Dec 30, 2021

76 Reposts · 384 Likes

Dr. Elena Falcettoni@efalcettoni

There is a lot that is cool about this paper by Nygaard and Raveendranathan, but this picture is at least worth 1000 words (or at least the characters of a few Tweets). This graph is the uninsurance rate between 1940 and 2018 in the US population. Link: drive.google.com/file/d/149wYkZ…

Tim Kehoe @TimTkehoe

Research by Nygaard and Raveebdranathan uses an overlapping generation model with heterogeneous consumers and idiosyncratic uncertainty to evaluate impact of tax benefits to firms that provide health insurance to workers in the US. H/T: @CZimm_economist https://t.co/mCeVJ5JdgQ

5:34 PM · Jan 2, 2022

12 Reposts · 41 Likes

George Georgiadis@gjgeorgiadis

A thread about “A/B Contracts” with @convexify. Imagine you hire salespeople every summer to go door to door selling kitchen knife sets, and you pay them a piece rate for each sale. Should you increase or decrease this piece rate? (1/14)