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Decades ago, historians Al Crosby and Philip Curtin hypothesized that the introduction of maize (corn) to Africa helped prop up the slave trade. Now, two economists test this idea and say it was right all along: sciencedirect.com/science/articl… /v Oliver Morton

In a just accepted new paper, Nouri Najjar (Nouri Najjar) and Jevan Cherniwchan (Jevan Cherniwchan) find the effects of air quality standards explain just under 40% of the clean-up of manufacturing. mitpressjournals.org/doi/abs/10.116…

Did NAFTA shift pollution-intensive production to Mexico? "After NAFTA, affected [US] plants began to source relatively dirty intermediate inputs from Mexico rather than produce them in house due to differences in the costs of environmental regulation." sciencedirect.com/science/articl… 1/

One of our most popular articles from 2017: "Trade liberalization and the environment: Evidence from NAFTA and U.S. manufacturing" by Jevan Cherniwchan. Available to all via open access. sciencedirect.com/science/articl… 5/5

My new blog post for SP Institute on how env policy is causing a manufacturing clean-up. institute.smartprosperity.ca/content/techni… A non-technical summary of my work with Jevan Cherniwchan.

Quick hits: manufacturing PM2.5 intensity has fallen almost 80% since early 90s in Canada. Similar numbers for other pollutants, and the US and Europe.

In recent years, roughly 40% of the clean-up in Canada caused by air quality standards... ...and most of that was due to reallocation across plants or plant exit. i.e. only small change in production processes at surviving plants.

Potential reason for small role of "process effect": fixed-costs of process changes.

Full paper available through The Review of Economics and Statistics (REStat) just accepted articles: mitpressjournals.org/doi/abs/10.116…

We are hiring an assistant professor in Health Economics at Carleton university! econjobmarket.org/positions?type… Come join awesome colleagues (carleton.ca/economics/facu…) in a great city (ottawatourism.ca/en).

Forthcoming in AEJ: Economic Policy: "Do Environmental Regulations Affect the Decision to Export?" by Jevan Cherniwchan and Nouri Najjar. aeaweb.org/articles?id=10…

Our "International Trade and Environmental Policy" workshop with Giovanni Maggi and Bob Staiger (Yale Department of Economics and DartmouthEcon) contains many important papers including Jevan Cherniwchan Nouri Najjar Ryan Abman Tomás Domínguez-Iino Farid Farrokhi Ahmad Lashkaripour

In the July 2021 issue of REStat: Nouri Najjar (Nouri Najjar) and Jevan Cherniwchan (Jevan Cherniwchan) find the effects of air quality standards explain just under 40% of the clean-up of manufacturing. mitpressjournals.org/doi/abs/10.116…

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Hi #EconTwitter and #SocialScience. James MacKinnon, Morten Nielsen, and I are excited to announce our Stata package summclust. It is designed to assess the reliability of conventional cluster-robust inference. It also calculates improved standard errors.🧵 1/

Three empirical challenges in assessing the environmental consequences of liberalized trade, from Jevan Cherniwchan and M. Scott Taylor nber.org/papers/w30020

Congratulations to Carleton's Jevan Cherniwchan, our newest Canada Research Chair! Read about Jevan's research in Economics of Sustainability and Globalization here: ow.ly/2ViX50JofVT @CRC_CRC SSHRC @FPACarleton @CUnewsroom Jevan Cherniwchan

This year’s #ACEA22 Purvis Prize winners List of past winners economics.ca/cpages/doug-pu… #CdnEcon

Congratulations to Nouri Najjar (Western Economics) and Jevan Cherniwchan (Carleton University) winners of the 2022 Doug Purvis Memorial Prize for their paper "Environmental Regulations and the Cleanup of Manufacturing: Plant-Level Evidence." Review of Economics and Statistics (The MIT Press @mitpress.bsky.social)

1/ A thread on my latest blog piece, on why Canada's Belle Epoque infant industry worked—promoting industrialization in a resource-rich economy. (Also a bit on Imperial Russia in the Canadian mirror) and a quick response to Vincent Geloso).