A computationally fast estimator for random coefficients logit demand models using aggregate data

Jinhyuk Lee, Kyoungwon Seo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This article proposes a computationally fast estimator for random coefficients logit demand models using aggregate data that Berry, Levinsohn, and Pakes (; hereinafter, BLP) suggest. Our method, which we call approximate BLP (ABLP), is based on a linear approximation of market share functions. The computational advantages of ABLP include (i) the linear approximation enables us to adopt an analytic inversion of the market share equations instead of a numerical inversion that BLP propose, (ii) ABLP solves the market share equations only at the optimum, and (iii) it minimizes over a typically small dimensional parameter space. We show that the ABLP estimator is equivalent to the BLP estimator in large data sets. Our Monte Carlo experiments illustrate that ABLP is faster than other approaches, especially for large data sets.

Original languageEnglish
Pages (from-to)86-102
Number of pages17
JournalRAND Journal of Economics
Volume46
Issue number1
DOIs
Publication statusPublished - 2015 Mar 1
Externally publishedYes

ASJC Scopus subject areas

  • Economics and Econometrics

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