1/ SCAM ALERT 🚨 @StubHub is ripping off World Cup fans. My brother and I paid for tickets and planned a whole trip to Mexico for Uzbekistan vs Colombia (Match 24, 6/17) — StubHub claims they "transferred" them, but the tickets NEVER appeared in our FIFA account. We are not alone
There is a lot of noise around AI right now — boom, bust, crisis scenarios, exponential growth stories.
I honestly think we should be more humble. We simply don’t know yet. [1/9]
Deadline to apply for the Ph.D. at the Vancouver School of Economics @ubcVSE is coming up on Dec 15th. Now that things look difficult South of the border, one more reason to come to UBC for your Ph.D. Amazing research being done here. More info: https://t.co/gBwTbHdgou
🚨 Job Market Paper 🚨
Wealth Inequality and Labor Mobility: The Job Trap
Does wealth affect workers’ ability to move to better jobs? Why do some remain stuck with low wages?
My answer: The Job Security Premium
Paper: https://t.co/PB3iKxtsju
1/12 #EconTwitter#EconJobMarket
How to Use AI Without Losing Our Minds by Ngaire Woods @ProSyn?referral=5a60cd https://t.co/gQ2BajaKeN
if you do not train your brain to remember, to reason, and to welcome “cognitive friction,” the result will be an eroding of the capacity for learning, reasoning, creativity
1/ Fred Finan and I have written a chapter for the forthcoming Handbook of Political Economy, where we summarize what we have learned in the past 20 years from micro evidence about why Democracies Malfunction in the Developing Countries https://t.co/gdcUKrCPZJ
A 🧵 on the ☀️Summer of 2025 #DiD reading list:
Quite some authors have recently released new papers or updated their older ones. So here is a reading list dump in reverse chronological order:
👉 Clément de Chaisemartin, Xavier D'Haultfœuille (June 2025). Credible Answers to Hard Questions: Differences-in-Differences for Natural Experiments.
https://t.co/t2M6EjhGZs
👉 Andrew Baker, Brantly Callaway, Scott Cunningham, Andrew Goodman-Bacon, Pedro H. C. Sant'Anna (Jun 2025). Difference-in-Differences Designs: A Practitioner's Guide.
https://t.co/lax7Eb2jSA
👉 Partha Deb, Edward C. Norton, Jeffrey M. Wooldridge & Jeffrey E. Zabel (May 2025). A Flexible, Heterogeneous Treatment Effects Difference-in-Differences Estimator for Repeated Cross-Sections.
https://t.co/AfnjH6tPJW
👉 Andrea (May 2025). Distributional Difference-in-Differences Models with Multiple Time Periods.
https://t.co/MZtHOtG9S0
👉 Marcelo Ortiz-Villavicencio, Pedro H. C. Sant’Anna (May 2025). Better Understanding Triple Differences Estimators.
https://t.co/xfylYxt8Fd
👉 Takamichi Baba, Yoshiyuki Ninomiya (May 2025). Covariate balancing estimation and model selection for difference-in-differences approach
https://t.co/bhdx4tfGSl
👉 Luis Alvarez, Bruno Ferman, Kaspar Wüthrich (Apr 2025). Inference with few treated units.
https://t.co/PS1yPqDjo5
👉 Yixiao Sun, Haitian Xie, Yuhang Zhang (Mar 2025). Difference-in-Differences Meets Synthetic Control: Doubly Robust Identification and Estimation.
https://t.co/wd8oS2GbKY
👉 Dor Leventer (Feb 2025). Conditional Triple Difference-in-Differences.
https://t.co/jmHGulE67z
👉 Sho Miyaji (Jan 2025): Triple Instrumented Difference-in-Differences.
https://t.co/Q21joA8IPu
👉 Myungkou Shin (Jan 2025). Finitely Heterogeneous Treatment Effect in Event-study.
https://t.co/zi47GnvFHy
👉 Clément de Chaisemartin, Xavier D'Haultfœuille (Nov 2024). Difference-in-Differences Estimators of Intertemporal Treatment Effects.
https://t.co/hv5Irtc3pz
👉 Sunny Karim, Matthew D. Webb, Nichole Austin, Erin Strumpf (Oct 2024). Difference-in-Differences with Unpoolable Data.
https://t.co/Rj22D3CUPK
👉 Dmitry Arkhangelsky, Guido Imbens (Jun 2024). Causal Models for Longitudinal and Panel Data: A Survey.
https://t.co/RiB7zgyTAE
👉 Renan Serenini, Frantisek Masek (Feb 2024) Spatial Synthetic Difference-in-Differences.
https://t.co/TL1mjuCGnG
And just discovered this one from 2023:
👉 Soo Jeong Lee, Jeffrey M. Wooldridge (Jul 2023). A Simple Transformation Approach to Difference-in-Differences Estimation for Panel Data.
https://t.co/u8xi2JdPqL
An observation: We are getting more and more theory paper but little on implementation. Hopefully some new packages will also be made available soon.
Very big impact: The final version of a randomized, controlled World Bank study finds using a GPT-4 tutor with teacher guidance in a six week after school progam in Nigeria had "more than twice the effect of some of the most effective interventions in education" at very low costs
Happy that I had the chance to present our paper at the @RIDGE_uy in the Public Economics Workshop. Now it's time to enjoy Lima and its incredible food 🇵🇪 🔥.
Quick @Stata tip: I've added 43 new tips to my book, bringing the total to 140.
You can download "Quick Stata Tips" and the accompanying .do file for free at https://t.co/MY4O6dzlgD
Wrapping up an amazing chapter visiting @ubcVSE-new ideas, stories, & friends! The list is long but special thanks to @claudferraz for incredible hosting, to @felipev84 for long talks on history, films & LatAm, and to @DrNathanNunn for great multidisciplinary course discussions.
Excited to share my latest research published in the JDE! I investigated how the composition of groups by risk for violence affects outcomes in after-school programs (ASPs). Here is the link followed by a thread:
https://t.co/P3Lw9MZcul
Thrilled to join the Nobel Prize Meeting in Economic to present my research! An incredible opportunity to meet Nobel laureates and learn from them. Very grateful to David Card @berkeleyecon and Henrik Kleven @PrincetonEcon for their generous support to make this possible!