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Measuring the Impact of Agricultural Production Shocks on International Trade Flows

Shon Ferguson () and Johan Gars

No 261283, 2017 International Congress, August 28-September 1, 2017, Parma, Italy from European Association of Agricultural Economists

Abstract: The purpose of this study is to measure the sensitivity of trade volumes and trade unit values to agricultural production shocks. We derive a gravity model of trade with two new features. First, the model assumes perfectly in- elastic supply, which captures the short-run nature of year-to-year production shocks and has important implications for levels of regression coecients and how they can be used to measure the elasticity of substitution. Second, the presence of per-unit trade costs implies that, in percentage terms, unit values based on importing country data (including trade costs) should react less to production shocks than unit values based on exporting country data (exclud- ing trade costs). Using bilateral trade ow data for a large sample of countries and agricultural commodities we nd empirical support for the predictions of the model, with relatively high substitutability between varieties of crops dif- ferentiated by country of origin and quantitatively large per-unit trade costs. Our framework provides a new method for measuring substitution elasticities and per-unit trade costs using international trade data. Furthermore, our results suggest that trade frictions or substitution with other goods diminish the role of international trade as way of coping with production volatility.

Keywords: Agribusiness (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-int
Date: 2017-08-28
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http://ageconsearch.umn.edu/record/261283/files/Fe ... %20Trade%20Flows.pdf (application/pdf)
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Related works:
Working Paper: Measuring the Impact of Agricultural Production Shocks on International Trade Flows (2018) Downloads
Working Paper: Measuring the Impact of Agricultural Production Shocks on International Trade Flows (2017) Downloads
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