Internal migration has been cited as a key channel by which societies will adapt to climate change. We show in this paper that this process has already been happening in the United States. Over the course of the past 50 years, the tendency of Americans to move from the coldest places (“snow belt”), which have become warmer, to the hottest places (“sun belt”), which have become hotter, has steadily declined. In the latest full decade, 2010-2020, both county population growth and county net migration rates were essentially uncorrelated with the historical means of either extreme heat days or extreme cold days. The decline in these correlations over the past 50 years is true across counties, across commuting zones, and across states. It holds for urban and suburban counties; for rural counties the correlations have even reversed. It holds for all educational groups, with the sharpest decline in correlations for those with four or more years of college. Among age groups, the pattern is strongest for age groups 20-29 and 60-69, suggestive of climate being an especially important factor for those in life stages involving long-term location choices. Given climate change projections for coming decades of increasing extreme heat in the hottest U.S. counties and decreasing extreme cold in the coldest counties, our findings suggest the “pivoting” in the U.S. climate-migration correlation over the past 50 years is likely to continue, leading to a reversal of the 20th century snow belt to sun belt migration pattern.
{"title":"Snow Belt to Sun Belt Migration: End of an Era?","authors":"Sylvain Leduc, Daniel J. Wilson","doi":"10.24148/wp2024-21","DOIUrl":"https://doi.org/10.24148/wp2024-21","url":null,"abstract":"Internal migration has been cited as a key channel by which societies will adapt to climate change. We show in this paper that this process has already been happening in the United States. Over the course of the past 50 years, the tendency of Americans to move from the coldest places (“snow belt”), which have become warmer, to the hottest places (“sun belt”), which have become hotter, has steadily declined. In the latest full decade, 2010-2020, both county population growth and county net migration rates were essentially uncorrelated with the historical means of either extreme heat days or extreme cold days. The decline in these correlations over the past 50 years is true across counties, across commuting zones, and across states. It holds for urban and suburban counties; for rural counties the correlations have even reversed. It holds for all educational groups, with the sharpest decline in correlations for those with four or more years of college. Among age groups, the pattern is strongest for age groups 20-29 and 60-69, suggestive of climate being an especially important factor for those in life stages involving long-term location choices. Given climate change projections for coming decades of increasing extreme heat in the hottest U.S. counties and decreasing extreme cold in the coldest counties, our findings suggest the “pivoting” in the U.S. climate-migration correlation over the past 50 years is likely to continue, leading to a reversal of the 20th century snow belt to sun belt migration pattern.","PeriodicalId":505738,"journal":{"name":"Federal Reserve Bank of San Francisco, Working Paper Series","volume":" 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141832817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We study the implications of trade uncertainty for reshoring, automation, and U.S. labor markets. Rising trade uncertainty creates incentive for firms to reduce exposures to foreign suppliers by moving production and distribution processes to domestic producers. However, we argue that reshoring does not necessarily bring jobs back to the home country or boost domestic wages, especially when firms have access to labor-substituting technologies such as automation. Automation improves labor productivity and facilitates reshoring, but it can also displace jobs. Furthermore, automation poses a threat that weakens the bargaining power of low-skilled workers in wage negotiations, depressing their wages and raising the skill premium and wage inequality. The model predictions are in line with industry-level empirical evidence.
{"title":"Reshoring, Automation, and Labor Markets Under Trade Uncertainty","authors":"Sylvain Leduc, Zheng Liu","doi":"10.24148/wp2024-16","DOIUrl":"https://doi.org/10.24148/wp2024-16","url":null,"abstract":"We study the implications of trade uncertainty for reshoring, automation, and U.S. labor markets. Rising trade uncertainty creates incentive for firms to reduce exposures to foreign suppliers by moving production and distribution processes to domestic producers. However, we argue that reshoring does not necessarily bring jobs back to the home country or boost domestic wages, especially when firms have access to labor-substituting technologies such as automation. Automation improves labor productivity and facilitates reshoring, but it can also displace jobs. Furthermore, automation poses a threat that weakens the bargaining power of low-skilled workers in wage negotiations, depressing their wages and raising the skill premium and wage inequality. The model predictions are in line with industry-level empirical evidence.","PeriodicalId":505738,"journal":{"name":"Federal Reserve Bank of San Francisco, Working Paper Series","volume":"192 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141001826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We assess the effects of the historically unprecedented expansion of U.S. unemployment insurance (UI) payments during the COVID-19 pandemic. The adverse economic impacts of the pandemic, notably the pattern of job losses and earnings reductions, were disproportionately born by lower-income individuals. Focusing on household income as a broad measure of well-being, we document that UI payments almost completely offset the increase in household income inequality that otherwise would have occurred in 2020 and 2021. We also examine the impacts of the $600 increase in weekly UI benefit payments, available during part of 2020, on job search outcomes. We find that despite the very high replacement rate of lost earnings for low-wage individuals, the search disincentive effects of the enhanced UI payments were limited overall and smaller for individuals from lower-income households. These results suggest that the pandemic UI expansions improved equity but had limited consequences for economic efficiency.
{"title":"Enhanced Unemployment Insurance Benefits in the United States during COVID-19: Equity and Efficiency","authors":"Robert G. Valletta, Martha Yilma","doi":"10.24148/wp2024-15","DOIUrl":"https://doi.org/10.24148/wp2024-15","url":null,"abstract":"We assess the effects of the historically unprecedented expansion of U.S. unemployment insurance (UI) payments during the COVID-19 pandemic. The adverse economic impacts of the pandemic, notably the pattern of job losses and earnings reductions, were disproportionately born by lower-income individuals. Focusing on household income as a broad measure of well-being, we document that UI payments almost completely offset the increase in household income inequality that otherwise would have occurred in 2020 and 2021. We also examine the impacts of the $600 increase in weekly UI benefit payments, available during part of 2020, on job search outcomes. We find that despite the very high replacement rate of lost earnings for low-wage individuals, the search disincentive effects of the enhanced UI payments were limited overall and smaller for individuals from lower-income households. These results suggest that the pandemic UI expansions improved equity but had limited consequences for economic efficiency.","PeriodicalId":505738,"journal":{"name":"Federal Reserve Bank of San Francisco, Working Paper Series","volume":"46 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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