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Robust Semiparametric Estimation in Panel Multinomial Choice Models

Wayne Yuan Gao and Ming Li

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Abstract: This paper proposes a robust method for semiparametric identification and estimation in panel multinomial choice models, where we allow for infinite-dimensional fixed effects that enter into consumer utilities in an additively nonseparable way, thus incorporating rich forms of unobserved heterogeneity. Our identification strategy exploits multivariate monotonicity in parametric indexes, and uses the logical contraposition of an intertemporal inequality on choice probabilities to obtain identifying restrictions. We provide a consistent estimation procedure, and demonstrate the practical advantages of our method with simulations and an empirical illustration with the Nielsen data.

Date: 2020-08
New Economics Papers: this item is included in nep-dcm and nep-ecm
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Handle: RePEc:arx:papers:2009.00085