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We formulate a family of direct utility functions for the consumption of a differentiated good. The family is based on a generalization of the Shannon entropy. It includes dual representations of all additive random utility discrete choice models, as well as models in which goods are complements. Demand models for market shares can be estimated by plain regression, enabling the use of instrumental variables. Models for microdata can be estimated by maximum likelihood.

Item Type: MPRA Paper -

Original Title: Generalized entropy models-

Language: English-

Keywords: market shares; product differentiation; duality; discrete choice; entropy-

Subjects: C - Mathematical and Quantitative Methods > C2 - Single Equation Models ; Single Variables > C25 - Discrete Regression and Qualitative Choice Models ; Discrete Regressors ; Proportions ; ProbabilitiesD - Microeconomics > D0 - General > D01 - Microeconomic Behavior: Underlying PrinciplesL - Industrial Organization > L1 - Market Structure, Firm Strategy, and Market Performance-

Autor: Fosgerau, Mogens


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