Re-visiting the Distance Coefficient in Gravity Model

Haonan Wu

Papers from arXiv.org

Abstract: This paper revisits the classic gravity model in international trade and reexamines the distance coefficient. As pointed out by Frankel (1997), this coefficient measures the relative unit transportation cost between short distance and long distance rather than the absolute level of average transportation cost. Our results confirm this point in the sense that the coefficient has been very stable between 1991-2006, despite the obvious technological progress taken place during this period. Moreover, by comparing the sensitivity of these coefficients to change in oil prices at short periods of time, in which technology remained unchanged, we conclude that the average technology has indeed reduced the average trading cost. The results are robust when we divide the aggregate international trades into different industries.

Date: 2015-03, Revised 2015-03
New Economics Papers: this item is included in nep-int
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:1503.05283

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