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The Fragility of Estimated Effects of Unilateral Divorce Laws on Divorce Rates

Jin Young Lee

Korea Economic Research Institute

Gary Solon

University of Arizona; National Bureau of Economic Research (NBER)

February 2011

NBER Working Paper No. w16773

Following an influential article by Friedberg (1998), Wolfers (2006) explored the sensitivity of Friedberg's results to allowing for dynamics in the response of divorce rates to the adoption of unilateral divorce laws. We in turn explore the sensitivity of Wolfers's results to variations in estimation method and functional form, and we find that the results are extremely fragile. We conclude first that the impact of unilateral divorce laws remains unclear. Second, extending Wolfers's methodological insight about sensitivity of differences-in-differences estimation to allowance for dynamic response, we suggest that identification in differences-in-differences research becomes weaker in the presence of dynamics, especially in the presence of unit-specific time trends.

Number of Pages in PDF File: 12

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Date posted: February 14, 2011  

Suggested Citation

Lee, Jin Young and Solon, Gary, The Fragility of Estimated Effects of Unilateral Divorce Laws on Divorce Rates (February 2011). NBER Working Paper No. w16773. Available at SSRN: http://ssrn.com/abstract=1759845

Contact Information

Jin Young Lee (Contact Author)
Korea Economic Research Institute ( email )
FKI Building, 28-1, Yoido-dong
150-756 Seoul
Gary Solon
University of Arizona ( email )
Department of Economics
Eller College of Management
Tucson, AZ 85719
United States
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
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