Elasticity optimism

Jean Imbs, Isabelle Mejean

Research output: Contribution to journalArticle

Abstract

On average, estimates of trade elasticities are smaller in aggregate data than at sector level. This is an artifact of aggregation. Estimations performed on aggregate data constrain sector elasticities to homogeneity, which creates a heterogeneity bias. The paper shows such a bias exists in two prominent approaches used to estimate elasticities, which has meaningful consequences for the calibration of the trade elasticity in one-sector, aggregative models. With elasticities calibrated to aggregate data, macroeconomic models can have predictions at odds with the implications of their multi-sector counterparts. They do not when elasticities are calibrated using a weighted average of sector elasticities.

Original languageEnglish (US)
Pages (from-to)43-83
Number of pages41
JournalAmerican Economic Journal: Macroeconomics
Volume7
Issue number3
DOIs
StatePublished - Jan 1 2015

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Optimism
Elasticity
Aggregate data
Calibration
Prediction
Macroeconomic models
Homogeneity

ASJC Scopus subject areas

  • Economics, Econometrics and Finance(all)

Cite this

Elasticity optimism. / Imbs, Jean; Mejean, Isabelle.

In: American Economic Journal: Macroeconomics, Vol. 7, No. 3, 01.01.2015, p. 43-83.

Research output: Contribution to journalArticle

Imbs, Jean ; Mejean, Isabelle. / Elasticity optimism. In: American Economic Journal: Macroeconomics. 2015 ; Vol. 7, No. 3. pp. 43-83.
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