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Contribution Details

Type Working Paper
Scope Discipline-based scholarship
Title A cautionary note on using industry affiliation to predict income
Organization Unit
Authors
  • Jörn-Steffen Pischke
  • Hannes Schwandt
Language
  • English
Institution National Bureau of Economic Research
Series Name NBER Working Papers
Number 18384
Date 2012
Abstract Text Many literatures investigate the causal impact of income on economic outcomes, for example in the context of intergenerational transmission or well-being and health. Some studies have proposed to use employer wage differentials and in particular industry affiliation as an instrument for income. We demonstrate that industry affiliation is correlated with fixed individual characteristics, specifically parents' education and own height, conditional on the covariates typically controlled for in these studies. These results suggest that there is selection into industries based on unobservables. As a result the exclusion restriction in many IV studies of this type is likely violated.
Digital Object Identifier 10.3386/w18384
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