Todd A. Sorensen
Research Fellow

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Sorensen 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 World of Labor article: Do firms’ wage-setting powers increase during recessions?
 
IZA Discussion Papers:
No. Author(s)
Title
10646  Nathan Wiseman
Todd A. Sorensen
Bounds with Imperfect Instruments: Leveraging the Implicit Assumption of Intransitivity in Correlations
10558  Christian Neumeier
Todd A. Sorensen
Douglas A. Webber
The Implicit Costs of Motherhood over the Lifecycle: Cross-Cohort Evidence from Administrative Longitudinal Data
9668  Peter Norlander
Todd A. Sorensen
Discouraged Immigrants and the Missing Pop in EPOP
7456  Briggs Depew
Peter Norlander
Todd A. Sorensen
Flight of the H-1B: Inter-Firm Mobility and Return Migration Patterns for Skilled Guest Workers
(forthcoming in: Journal of Population Economics)
5928  Briggs Depew
Todd A. Sorensen
Elasticity of Supply to the Firm and the Business Cycle
(published in: Labour Economics, 2013, 24, 196-204)
5881  Arnaud Dupuy
Todd A. Sorensen
On Input Market Frictions and Estimation of Factors Demand
(published 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.)
5492  Fernando A. Lozano
Todd A. Sorensen
The Labor Market Value to Legal Status
3301  Fernando A. Lozano
Todd A. Sorensen
Mexican Immigrants, the Labor Market and the Current Population Survey: Seasonality Effects, Framing Effects, and Sensitivity of Results
(published as 'Mexican Immigrants, Labour Market Assimilation and the Current Population: The Sensitivity of Results Across Seemingly Equivalent Surveys' in: International Migration, 2015, 53(2), 250–262)
3060  Todd A. Sorensen
Price Fishback
Samuel K. Allen
Shawn Kantor
Migration Creation, Diversion, and Retention: New Deal Grants and Migration: 1935-1940
2870 
This paper has repeatedly been among the Top 10 monthly downloads. 
Supriya Sarnikar
Todd A. Sorensen
Ronald L. Oaxaca
Do You Receive a Lighter Prison Sentence Because You Are a Woman? An Economic Analysis of Federal Criminal Sentencing Guidelines
(revised version published as 'Race and Gender Differences under Federal Sentencing Guidelines' in: American Economic Review , 2012, 102 (3), 256–260.)
 

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