Vlad Tarko

@vladtarko.bsky.social

Prof of political economy at University of Arizona. Economic/political institutions, microeconomics and game theory, political/moral philosophy, #rstats My books: https://amzn.to/37TkK5P

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The #rstats package for the "Approximate Maximum Influence Perturbation" method of assessing the robustness of your results -- finds the smallest number of observations which, if removed, eliminate the coefficient significance or flip its sign. github.com/rgiordan/zam...

GitHub - rgiordan/zaminfluence: Tools in R for computing and using Z-estimator approximate influence functions.

Tools in R for computing and using Z-estimator approximate influence functions. - rgiordan/zaminfluence

github.com

New job opening at University of Arizona in Department of Political Economy and Moral Science - the home of the PPEL major. Tenure-Track Assistant Professor, philosophers, political scientists, economists, or legal scholars all eligible to apply. arizona.csod.com/ux/ats/caree...

Assistant Professor, PEMS

Teach four courses a year distributed across the PPEL B.A. program, the PPE M.A. program and the university general education program. Such courses ma...

arizona.csod.com

The second edition of The Effect is now available for preorder! This version has a whole new chapter on Partial Identification, a considerable update on staggered treatment and control variables in DID, and zillions of other little updates throughout. www.routledge.com/The-Effect-A...

The Effect: An Introduction to Research Design and Causality

The Effect: An Introduction to Research Design and Causality, Second edition is about research design, specifically concerning research that uses observational data to make a causal inference. It is s...

routledge.com

In the 1980s, economist Julian Simon won his bet with biologist Paul Ehrlich on material prices. Who would have won the Simon-Ehrlich bet over different decades, and what do long-term prices tell us about resource scarcity?

Chart titled "Who would have won the Simon-Ehrlich wager in any decade since 1900?" showing price trends for chromium, copper, nickel, tin, and tungsten. Simon (blue) bet prices would remain stable or fall, while Ehrlich (red) bet prices would rise. Simon won the 1980s wager. For chromium, Ehrlich would have won in the 1920s-40s; for copper, he would have won in the 1950s-70s; for nickel, he would have won in the 1950s-70s; for tin, he would have won in the 1940s-70s; and for tungsten, he would have won in the 1950s-70s. Prices are in 1998 US$ per tonne, adjusted for inflation. Data from the US Geological Survey.

What are some good studies about why US healthcare is so much more expensive than European systems? I'm guessing restricted supply is part of the story, but far from all.

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Joshua Gans, Scott Stern, and I are thrilled that our new book, Entrepreneurship, Choice and Strategy from W. W. Norton & Company, Inc., is launching into more classrooms this Spring (and your favorite online bookseller in TEN days)! 🎉

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These two papers, taken together, really cause a rethinking of behavioral economies. Rather than having anomalous risk preferences; it looks like people have complexity aversion to "hard" decisions, especially on valuation, which drives behavioral anomalies. Herbert Simon ftw.

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Florian Ederer @florianederer.bsky.social · 2y ago

Some of the most important lottery anomalies from the behavioral risk literature (e.g., probability weighting and loss aversion) actually have nothing to do with risk. They also arise in perfectly deterministic settings. Lead article in the latest AER issue: www.aeaweb.org/articles?id=...

If you're using #rstats and ggplot, it's easy to have line plots with labels on the right: - drop the NAs for the variable of interest - define label variable for only the end - use ggrepel to make the labels with some nudge_x - remove legend Example:

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it is funny how much the politicized version of immigration economics discourse is "Immigrants supply labor but do not demand labor, thus lowering wages for Americans. Except in the housing market, where immigrants demand housing without supplying it, thus driving up prices for Americans"

recently i watched seven samurai and enjoyed the reference to poor nutrition causing night blindness. i also noticed how shameful it was for the peasants to be eating millet which of course is now marketed as a health food. the film is also full of game theory. literally something for everyone.