Todd A. Sorensen

Research Fellow

University of California, Merced

CV

Research Interests

Todd's primary areas of interest are the study of migration issues and the study of firm market power over workers. His recent work has shown that firm wage setting power increases during economic downturns and that firm market power may bias estimates of the substitutability of different types of workers. He has also studied the mobility of guest workers on H-1B visas and found a surprising amount of mobility of these workers, providing a check on firm market power over these workers.

He joined IZA as a Research Affiliate in January 2007 and became a Research Fellow in April 2010.

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IZA Publications

IZA Discussion Paper No. 14164
Immigration and Voting Patterns in the European Union: Evidence from Five Case Studies and Cross-Country Analysis
Ethan Grumstrup, Todd A. Sorensen, Jan Misiuna, Marta Pachocka
published in: Migration Letters, 2021, 18 (5), 573–589.
IZA Discussion Paper No. 12096
Monopsony Power and Guest Worker Programs
Eric M. Gibbons, Allie Greenman, Peter Norlander, Todd A. Sorensen
published in: Antitrust Bulletin, 2019, 64 (4), 540-565
IZA Discussion Paper No. 11966
Monopsony in Labor Markets: A Meta-Analysis
Anna Sokolova, Todd A. Sorensen
published in: ILR Review, 2021, 72 (1), 27-55
IZA Discussion Paper No. 11836
Changing Sex-Ratios among Immigrant Communities in the U.S.
Adriana Hernández Catañeda, Todd A. Sorensen
published in: Journal of Economics, Race and Policy, 2019, 2 (1-2), 20 - 42
IZA Discussion Paper No. 10646
Bounds with Imperfect Instruments: Leveraging the Implicit Assumption of Intransitivity in Correlations
Nathan Wiseman, Todd A. Sorensen
IZA Discussion Paper No. 10558
The Implicit Costs of Motherhood over the Lifecycle: Cross-Cohort Evidence from Administrative Longitudinal Data
Christian Neumeier, Todd A. Sorensen, Douglas A. Webber
published as 'The Implicit Costs of Motherhood over the Lifecycle: Cross-Cohort Evidence from Administrative Longitudinal Data' in: Southern Economic Journal, 2018, 84 (3), 716-733
IZA Discussion Paper No. 9668
Discouraged Immigrants and the Missing Pop in EPOP
Peter Norlander, Todd A. Sorensen
published as: "21st Century Slowdown: The Historic Nature of Recent Declines in the Growth of the Immigrant Population in the United States", Migration Letters, July 2018
IZA Discussion Paper No. 7456
Flight of the H-1B: Inter-Firm Mobility and Return Migration Patterns for Skilled Guest Workers
Briggs Depew, Peter Norlander, Todd A. Sorensen
Published as "Inter-firm mobility and return migration patterns of skilled guest workers" in Journal of Population Economics, 2017, 30(2): 681-721
IZA Discussion Paper No. 5928
Elasticity of Supply to the Firm and the Business Cycle
Briggs Depew, Todd A. Sorensen
Published as "The elasticity of labor supply to the firm over the business cycle" Labour Economics, 2013, 24, 196-204
IZA Discussion Paper No. 5881
On Input Market Frictions and Estimation of Factors Demand
Arnaud Dupuy, Todd A. Sorensen
Published as "On input market frictions and estimation of factors' demand" in Southern Economic Journal, 2014, 80 (3), 772-782. (Winner of 2015 Georgescu-Roegen Prize for best paper published in SEJ during the calendar year.)
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