Irregular Identification of Structural Models with Nonparametric Unobserved Heterogeneity

Juan Carlos Escanciano

Papers from arXiv.org

Abstract: One of the most important empirical findings in microeconometrics is the pervasiveness of heterogeneity in economic behaviour (cf. Heckman 2001). This paper shows that cumulative distribution functions and quantiles of the nonparametric unobserved heterogeneity have an infinite efficiency bound in many structural economic models of interest. The paper presents a relatively simple check of this fact. The usefulness of the theory is demonstrated with several relevant examples in economics, including, among others, the proportion of individuals with severe long term unemployment duration, the average marginal effect and the proportion of individuals with a positive marginal effect in a correlated random coefficient model with heterogenous first-stage effects, and the distribution and quantiles of random coefficients in linear, binary and the Mixed Logit models. Monte Carlo simulations illustrate the finite sample implications of our findings for the distribution and quantiles of the random coefficients in the Mixed Logit model.

Date: 2020-05
New Economics Papers: this item is included in nep-ecm
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http://arxiv.org/pdf/2005.08611 Latest version (application/pdf)

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Journal Article: Irregular identification of structural models with nonparametric unobserved heterogeneity (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:2005.08611

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