environmental economist at @resec_umass
UMass Amherst
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Dave Keiser retweeted
Join my team! We’re looking for Senior *Cross-Cutting* Researchers to make sure we maintain research quality as GiveWell scales our grantmaking over the next few years 🧵
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📢 Out now in the 🌸May 2026 issue🌸of #JAERE! 📢
"Municipal Governments Under the Clean Water Act" by Rhiannon L. Jerch.
📎 Read it here: buff.ly/jrPGyQ7
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How do you measure drinking water pollution in America?
Turns out: with a lot of FOIA requests.
Our new working paper assembles a national database of U.S. drinking water pollution concentrations.
Here's what it took 🧵
w/ Bhash Mazumder @davidmolitor @_josephshapiro
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💧New Paper
Water Works: Causes and Consequences of Safe Drinking Water in America
📉US drinking water pollution fell by HALF in 2003-2019
💰Safe Drinking Water Act $ helped
❤️Investments reduce mortality, benefit/cost ratio >20
w @DavidKeiserEcon BMazumder @davidmolitor
👇
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Dave Keiser retweeted
Does cleaning up drinking water save lives?
New paper: We link US federal drinking water investments to Medicare records and find they reduce mortality among older Americans, with benefit/cost ratio >20.
Thread on what we did...
w/ @DavidKeiserEcon Mazumder @_josephshapiro
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US drinking water pollution has fallen rapidly; Safe Drinking Water Act loans reduce pollution and save lives. Analyzing 266 million pollution readings from Freedom of Information Act requests and Medicare data, from @DavidKeiserEcon, Bhashkar Mazumder, @davidmolitor, and @_josephshapiro nber.org/papers/w35288
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Dave Keiser retweeted
💧New Paper
Water Works: Causes and Consequences of Safe Drinking Water in America
📉US drinking water pollution fell by HALF in 2003-2019
💰Safe Drinking Water Act $ helped
❤️Investments reduce mortality, benefit/cost ratio >20
w @DavidKeiserEcon BMazumder @davidmolitor
👇
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Excited for this initiative and to have the opportunity to present at TSEE. Hope to see you online tomorrow!
Transatlantic Seminar on Environmental and Energy Economics
Monday, September 29 at 7:30 AM PST
Speaker: David Keiser (@DavidKeiserEcon)
University of Massachusetts Amherst
Gross External Damages of Water Pollution in the United States
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Dave Keiser retweeted
Forthcoming in AER: Insights: "Quantifying Threshold Manipulation in the Presence of Rounding: The Case of Lead Monitoring in U.S. Drinking Water" by Tihitina Andarge, Dalia Ghanem, David A. Keiser, and Gabriel E. Lade. aeaweb.org/articles?id=10.12…
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Dave Keiser retweeted
🆕 Ahead-of-print in @ReepAere:
"The Evolving Role of Greenhouse Gas Emission Offsets in Combating Climate Change" by Joseph E. Aldy (@josephaldy) and Zachery M. Halem
Read it here: journals.uchicago.edu/doi/10…
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Dave Keiser retweeted
🆕 Ahead-of-print in @ReepAere:
"Visualizing Causal Hypotheses in Environmental Econometrics" by Pierce Donovan
Read it here: journals.uchicago.edu/doi/10…
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