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Type: Journal Articles Authors: Florens, Jean-Pierre, James Heckman, Costas Meghir and Edward Vytlacil
Published in: Econometrica
Volume, issue, pages: Vol. 76, No. 5, pp. 1191-1206
We consider the identification of the average treatment effect in models with continuous endogenous variables whose impact is heterogeneous. We derive a testable restriction that allows us to assess the degree of unobserved heterogeneity. Our analysis uses assumptions relating to the Local Instrumental Variables (LIV) approach and the control function approach.
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