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JEL - Previous Issues

JEL - June 2010

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Journal of Economic Literature

Vol. 48, No. 2, June 2010


Better LATE Than Nothing: Some Comments on Deaton (2009) and Heckman and Urzua (2009)
Guido W. Imbens

Article Citation
Imbens, Guido W.. 2010. "Better LATE Than Nothing: Some Comments on Deaton (2009) and Heckman and Urzua (2009)." Journal of Economic Literature, 48(2): 399–423.
DOI:10.1257/jel.48.2.399

Abstract
Two recent papers, Deaton (2009) and Heckman and Urzua (2009), argue against what they see as an excessive and inappropriate use of experimental and quasi-experimental methods in empirical work in economics in the last decade. They specifically question the increased use of instrumental variables and natural experiments in labor economics and of randomized experiments in development economics. In these comments, I will make the case that this move toward shoring up the internal validity of estimates, and toward clarifying the description of the population these estimates are relevant for, has been important and beneficial in increasing the credibility of empirical work in economics. I also address some other concerns raised by the Deaton and Heckman-Urzua papers. (JEL C21, C31)

Article Full-Text Access
Full-Text Article

Authors
Imbens, Guido W. (Harvard U)

JEL Classifications
C21: Single Equation Models; Single Variables: Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions
C31: Multiple or Simultaneous Equation Models: Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions