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Estimating import supply and demand elasticities: Analysis and implications

Anson Soderbery ()

Journal of International Economics, 2015, vol. 96, issue 1, 1-17

Abstract: Feenstra (1994) developed, and Broda and Weinstein (2006) refined, a structural estimator of import demand and supply elasticities. Working through the first principles of the methodology from Leamer (1981), this paper analyzes and improves the technique to provide a unified estimator of import supply and demand elasticities. The proposed LIML routine corrects small sample biases and constrained search inefficiencies. Previously used estimates are shown to overestimate the median elasticity of substitution by over 35%. Applied to US import data from 1993 to 2007, the biases of the standard estimates translate into an understatement of consumer gains from product variety by a factor of 6. To conclude, I investigate the implications of violations to the underlying assumptions of the model.

Keywords: Import elasticity; Limited information maximum likelihood; Variety gains (search for similar items in EconPapers)
JEL-codes: F10 F12 F14 (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:inecon:v:96:y:2015:i:1:p:1-17

DOI: 10.1016/j.jinteco.2015.01.003

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