National Differentiation and Industry-Wide Scale Effects

Ahmad Lashkaripour () and Volodymyr Lugovskyy
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Ahmad Lashkaripour: Indiana University

No 2017-004, CAEPR Working Papers from Center for Applied Economics and Policy Research, Department of Economics, Indiana University Bloomington

Abstract: In a large class of trade models, trading patterns and the corresponding welfare gains depend on the scale elasticity—a deep parameter that governs industry-wide returns to scale. Noting that the scale elasticity depends on the extent to which technologies or products are nationally differentiated, we develop an empirical strategy to structurally estimate the scale elasticity across various industries. A trade model that features our estimated scale elasticity captures the negative relationship between population size and real income, which eludes standard trade models. Furthermore, we find that scale elasticities display considerable inter-industry variation. Accounting for these previously overlooked variations greatly modifies the estimated gains from trade.

Pages: 42 pages
Date: 2017-04
New Economics Papers: this item is included in nep-cse and nep-int
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Citations: View citations in EconPapers (2)

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