Explaining the size differences of exporter premia: theory and evidence
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Abstract
Two decades of research have established pronounced exporter productivity premia (EPP) and exporter size premia (ESP). Yet, we do not know why such exporter premia differ so widely in magnitude across countries or sectors? We take this question to the theory and to the data. We derive the sectoral EPP and ESP in a standard heterogeneous firms trade model and apply the insights from the model to guide our empirical investigation of detailed Danish firm-level data. We show that a significant share of the observed variation in EPP and ESP across sectors can be accounted for by sector differences in the underlying variation in productivity dispersion, variable trade costs, the ratio of fixed export costs to fixed costs of production, and the elasticity of demand.
Keywords
Intra-industry trade Exporter productivity Exporter size premium Firm-level data Heterogeneous firmsJEL Classification
F12 F14 D24 O47Notes
Acknowledgments
The paper benefited from the comments of Andrew Bernard, Gabriel Felbermayr, Benjamin Jung and Giammario Impullitti. The authors acknowledge financial support from the Tuborg Foundation.
Supplementary material
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