Christian Gormsen Schmidt

Transport Economist at Technical University of Denmark, DTU Management. Opinions my own.
Retweets about economics and data visulization

[Peter John Lambert @pj_lambert]

But why WFH? We also propose a stylised model to explain the mechanism: WFH makes supervision, monitoring, and on-the-job learning harder, all of which hit junior-workers more. Firms less willing to invest in junior talent when these frictions rise.

[Peter John Lambert @pj_lambert]

This has been shown to be concentrated in routine-cognitive white collar occupations. The challenge we highlight is that GenAI exposure is super strongly correlated with WFH exposure, posing a challenge for empirical analysis.

[Thomas Talhelm @ThomasTalhelm]

New study out in PNAS Nexus! 🚨Is modernization driving cultures farther apart?? Here it is in 60 seconds. 🧵 https://t.co/hmwSpd3gWT

[Nick Gillespie @nickgillespie]

Over at Substack, @JoshEakle asks: "It's 2026, and I have yet to see an anti-almond farm protest."

[Frank Chaparro @fintechfrank]

This is pretty wild:

A 2025 Goldman Sachs report found that 40% of people earning $500,000+ per year say they’re living paycheck to paycheck.

[Paul Novosad @paulnovosad]

Fascinating (and testable) hypothesis here:

Public transport gets worse in periods of high inflation, because it's politically hard to index fare prices.

So much city character depends on when transit works and doesn't... it's interesting to think about the extent to which these equilibria arise from good governance and citizen preferences, vs. just idiosyncratic factors like the right future-oriented contract or a particularly good transit agency leader.

I would read more about this. How much of "trains running on time" is just about total funding in the system?

[Callum Williams @econcallum]

Good new data on US income distribution over time

[Runling Wu @RunlingWu]

(7/13) Importantly, this aggregate pattern masks striking gender differences: comparing within each gender, daughters exhibit 38% greater mobility in total welfare than in wages; for sons, the two measures nearly align.

[Stanislav Avdeev @stnavdeev]

New WP "University as a Melting Pot: Long-term Effects of Internationalization"

Debates on international students often focus on capacity, funding, or competition.

My paper shows the main effects on natives are not academic or economic, but social.

https://t.co/Dgx4q9HrYn

1/8

[Caio de Holanda @deholandacaio]

🚨 New WP!

Do mothers actually become less productive after having children? The answer seems to be NO!

@DiogoBrittoBr, @bruno_ferman, @alex_fonseca__, @Brenorsampaio, @LucasWarwar, and I answer this question in a unique setting: Brazilian judges.

Link: https://t.co/Ffr4QmCyTU

[Caio de Holanda @deholandacaio]

Using rich Brazilian admin data, we find no evidence that becoming a parent causes lasting drops in productivity: only short-lived dips in output during statutory leave, followed by a full return to pre-birth levels for both mothers and fathers.

[Anna Stansbury @annastansbury]

@lymanstoneky This fig shows from 1961 (b/c we were comparing to Canada). Compare the black line - labor productivity - to the dark brown dashed line - prod/nonsupervisory compensation deflated with the same deflator as labor productivity. A huge divergence.

https://t.co/c7qP6Ycs67

[Francesco Furlanetto 🇺🇦 @francescofurla8]

FIRST 🔑 RESULT: consumption is more unevenly distributed than income across households, and more volatile than income over time within households.

Do Norwegian consumers not smooth income shocks? Not at all, they do!...BUT... Income is NOT the only driver of consumption. 5/N

[Jonathan Berk @berkie1]

Luxury Apartments Are Bringing Rent Down in Some Big Cities

“New building openings are bringing rents down as wealthy tenants trade up, forcing landlords to drop prices for older apartments.” @business

[Scott Lincicome @scottlincicome]

US cities that let people build more "luxury" apartments saw rents broadly fall - so much so that older, market-rate units in many high-supply areas are now cheaper than "affordable" housing.

Shocking, I know.

[Nicholas Decker @captgouda24]

A serious problem in the developing world is that the moment anyone makes anything, their family and relations show up demanding a claim. The "social tax" is so large that 60% of workers take a bank account they can't use for months, just to keep others from knowing! 1/

[John Bonney @johnbonney_econ]

Hi #econtwitter. Excited to share my job market paper!

When entrepreneurs start firms, it's very common for them to hire people they've worked with before.

I study how such network hiring affects firm performance - and even who becomes an entrepreneur in the first place.🧵
1/10

[Nicholas Decker @captgouda24]

I���m still amazed that “people vote for Berlusconi because they are morons” made it into the AER

[Jay Parsons @jayparsons]

Montgomery County, MD, (one of nation's most affluent counties) enacted rent control in July 2024.

Watch how multifamily building permits evaporated.

Poof.

Meanwhile, the rest of Maryland held steady on permits.

Incredibly effective NIMBY-ism.

[Munseob Lee @MunseobLee]

The real kicker: That 1.5x "bang for your buck" from government spending we keep hearing about? Paula shows it is actually just 1.0x. We did not realize that states with lots of fiscal spending also tend to be less sensitive to Fed rate hikes, which inflated our estimates.