Best of #econtwitter - Week of June 19, 2022 [2/3]
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 two of three.
Paper summaries
Elisa Macchi@alterelim
Today, @ClaraSievert, @vbolotnyy, Paul Barreira, and I shared results of our study of mental health in European Economics Departments with the 14 participating departments.
A thread about what we did and learned.
The executive summary is here: elisamacchi.github.io/files/emhs_exe…
1/N
elisamacchi.github.io
1:00 PM · Jun 14, 2022
98 Reposts · 307 Likes
Elisa Macchi@alterelim
34.7% of European Econ PhD students are experiencing moderate to severe symptoms of depression or anxiety. This prevalence is higher than among Econ PhDs in the 2017 U.S. study (24.8%). This is likely due, in part, to the COVID-19 pandemic. 7/N
1:08 PM · Jun 14, 2022
16 Reposts · 46 Likes
Elisa Macchi@alterelim
Untenured, tenure-track faculty show rates of significant depression or anxiety symptoms (31%) that are similar to graduate student levels. Prevalence among tenured professors is much lower, around 9%. 9/N
1:09 PM · Jun 14, 2022
7 Reposts · 35 Likes
Avner Strulov-Shlain@AvnerShlain
Supermarkets use 99-ending prices a lot. Why? Presumably because of left-digit bias.
Question: is there left-digit bias to justify 99-ending prices?
Answer: Oh yes there is! here's an example 👇
See how demand drops when the dollar digit changes, but is flat if it doesn't?
10:01 PM · Jun 16, 2022
6 Reposts · 34 Likes
Avner Strulov-Shlain@AvnerShlain
And we do!
These are the residuals for 3,500 different products at 25 US chains, ain't it pretty? Gosh I love this figure.
Anyway...
10:01 PM · Jun 16, 2022
1 Repost · 30 Likes
Avner Strulov-Shlain@AvnerShlain
Anyway, we can also quantify the magnitude of left-digit bias and find it to be about 0.2.
0.2?! What does that mean?
It means that the perceived price difference between, e.g., $4.99 and $5.00, is 21 cents.
That's a big difference and it has implications on pricing.
10:01 PM · Jun 16, 2022
3 Reposts · 14 Likes
Jonathan Schulz@JF_Schulz
Strong kin-based norms are detrimental for well-functioning institutions. Excited to see my work on Kin Networks and Institutional Develop forthcoming in the Economic Journal!
The Economic Journal @EJ_RES
Recently accepted at EJ:"Kin Networks and Institutional Development" by Jonathan. F. Schulz https://t.co/cTwr63Bepz @JF_Schulz
@RoyalEconSoc @OUPEconomics #EconTwitter https://t.co/F4IOZLn9wU
1:28 PM · Jun 17, 2022
214 Reposts · 940 Likes
econimate@econimate
How does the migration of high-skilled knowledge workers shape innovation, knowledge diffusion, and economic growth?
@MartaPrato (@UChi_Economics) on the global race for talent:
youtu.be/9Hw94ZusazU
3:02 PM · Jun 14, 2022
25 Reposts · 96 Likes
^always check out @econimate
Elliot Lipnowski@ElliotLip
Today's edition of 'pretty theory papers worth knowing' is Dezsö Szalay's paper, "The Economics of Clear Advice and Extreme Options". The paper concerns itself with information acquisition choices under delegated decision making. Let's go through an example...
6:57 PM · Jun 15, 2022
49 Reposts · 262 Likes
Pascal Michaillat@pmichaillat
New version of our paper (with Adam McCloskey) on critical values robust to p-hacking:
pascalmichaillat.org/12.html
The paper develops a model of p-hacking. It then gives critical values that correct the inflated type 1 error rate caused by p-hacking.
7:28 PM · Jun 16, 2022
24 Reposts · 65 Likes
Stefanie Fischer@stef_fischer
New working paper w/ @royer_heather & @corey_d_white. 🧵:
In the past 30 years over 400 counties have lost their sole hospital-based OB unit, with most closures occurring in rural areas.
What is the impact of this “Rural Maternity Care Crisis”?
nber.org/papers/w30141
nber.org
Health Care Centralization: The Health Impacts of Obstetric Unit Closures in the US
8:25 PM · Jun 13, 2022
15 Reposts · 69 Likes
Interesting discussions
Branko Milanovic@BrankoMilan
In the "nerding out" part: the end of the elephant. Between 2008 and 2018, incomes of the globally poor have increased in percentage terms much more than the incomes of the globally rich. The global Gini has gone down.
7:46 PM · Jun 17, 2022
413 Reposts · 1.29K Likes
Brendan Hodge@Brendan_m_Hodge
I was the corporate pricing manager for Wendy's from 2010-2012, so as a professional pricer seeing this thread go viral, I can't help providing some corrections.
The most basic thing to understand about fast food pricing is that a successful store needs to run at ~30% food cost
C. Katsfoter, Burger Stalinist🔻 @primarycatdad
A McDonalds hamburger costs $2.09 at the register. McDonalds internal documents show that the raw materials (patty, bun, etc.) cost $0.34. A McDonalds employee makes $11/hr on average with a shift manager making $15/hr. Shifts are 8 people on average. That means McDonalds pays
12:48 AM · Jun 13, 2022
913 Reposts · 5.46K Likes
^thread on multiproduct pricing
Oleguer Plana-Ripoll@oleguerplana
Comprehensive new resource from our group at @AarhusUni_int: the ‘Danish Atlas of Disease Mortality’ with epidemiological and mortality data for 1800+ health conditions 🧵
👉nbepi.com/atlas
Just published in @PLOSMedicine
#epitwitter #rstats #poptwitter @John_J_McGrath
6:02 PM · Jun 16, 2022
34 Reposts · 109 Likes