Michael Oppenheimer

Department of Geosciences
Woodrow Wilson School
Princeton University
448 Robertson Hall
Princeton, NJ 08544-1013

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
Institutional Affiliation: Princeton University

NBER Working Papers and Publications

August 2018Evaluating the Economic Cost of Coastal Flooding
with Klaus Desmet, Robert E. Kopp, Scott A. Kulp, Dávid Krisztián Nagy, Esteban Rossi-Hansberg, Benjamin H. Strauss: w24918
Sea-level rise and ensuing permanent coastal inundation will cause spatial shifts in population and economic activity over the next 200 years. Using a highly spatially disaggregated, dynamic model of the world economy that accounts for the dynamics of migration, trade, and innovation, this paper estimates the consequences of probabilistic projections of local sea-level changes under different emissions scenarios. Under an intermediate greenhouse gas concentration trajectory, permanent flooding is projected to reduce global real GDP by an average of 0.19% in present value terms, with welfare declining by 0.24% as people move to places with less attractive amenities. By the year 2200 a projected 1.46% of world population will be displaced. Losses in many coastal localities are more than an o...
January 2012Climate Change, Crop Yields, and Internal Migration in the United States
with Shuaizhang Feng, Wolfram Schlenker: w17734
We investigate the link between agricultural productivity and net migration in the United States using a county-level panel for the most recent period of 1970-2009. In rural counties of the Corn Belt, we find a statistically significant relationship between changes in net outmigration and climate-driven changes in crop yields, with an estimated semi-elasticity of about -0.17, i.e., a 1% decrease in yields leads to a 0.17% net reduction of the population through migration. This effect is primarily driven by young adults. We do not detect a response for senior citizens, nor for the general population in eastern counties outside the Corn Belt. Applying this semi-elasticity to predicted yield changes under the B2 scenario of the Hadley III model, we project that, holding other factors constan...
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