Trade Potential: A New Measure of Openness

Michael Waugh and B Ravikumar

No 1329, 2016 Meeting Papers from Society for Economic Dynamics

Abstract: In this paper we derive a new measure of openness—the trade potential index—that quantifies the potential gains to trade as a simple function of data. Using a standard multicountry trade model, we measure openness by a country’s potential welfare gain from moving to a world with frictionless trade. A country’s trade potential depends on only the trade elasticity and two observable statistics: the country’s home trade share and its income level. Quantitatively, poor countries have larger trade potentials relative to rich countries, while their welfare costs of autarky are similar. This leads us to infer that rich countries are more open to trade. Our trade potential index correlates strongly with estimates of trade costs, while both the welfare cost of autarky and the trade-to-GDP ratio exhibit weak correlations with trade costs. Thus, our measure of openness is informative about the underlying frictions to trade.

Date: 2016
New Economics Papers: this item is included in nep-int
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Persistent link: https://EconPapers.repec.org/RePEc:red:sed016:1329

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