Allison Shertzer

@econhist-allday.bsky.social

Economic historian of U.S. cities. Interested in infrastructure, land use regulation, and housing prices over the long run. Views expressed here are my own. Personal website at allisonshertzer.com.

I ended my last class today to my masters students who are graduating by saying “And if I could give you one piece of advice it would be…to never put grease down the drain.” Student in front row “WHAT? Why? I do that all the time.”

Excited to share a new @nber.org paper w/Blonz/Hossain/Mulder/Weill where we show credit scores impact homeowners insurance premiums as much as disaster risk. Here’s what happened in WA when they banned credit scoring:

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NEW: In 2024, Tierra Walker was sick and getting sicker. She was also pregnant. She knew abortion was illegal in Texas, but thought there was an exception for women like her, whose health was at risk. Doctors told her there was no emergency. Then she died. www.propublica.org/article/texa...

“Ticking Time Bomb”: A Pregnant Mother Kept Getting Sicker. She Died After She Couldn’t Get an Abortion in Texas.

Walker is one of several women ProPublica found with underlying health conditions who died when they couldn’t access abortions.

propublica.org

🚀 I'm on the #EconSky Job Market! My JMP asks a classic question: Do large, dominant firms foster or hinder innovation? To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont. A JMP 🧵👇 (1/13)

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This Day in Labor History: October 26, 1825. The Erie Canal opened, eight years after construction commenced. This engineering marvel would have enormous impacts on the future of American work, including spurring ever-greater industrialization. It also killed over 1,000 workers building it!

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Mokyr's work could not have been done today in most economics departments, but the irony is that his work would not fit in history departments today, either. Methodologically he seems more 'history' than 'economics' to economists, but the content and reasoning are too 'economics' for most historians

One of the most surprising details in the latest CPI: an increasing share of price data was estimated, not observed. In June, over 1/3 of #CPI imputations came from other items or locations likely due to budget cuts and staffing shortages at BLS. We can’t fight #inflation without reliable data.

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