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Elasticity of trade flow to trade barriers: A comparison among emerging estimation techniques

  • Olper, Alessandro
  • Raimondi, Valentina

The objective of this study has been to analyze the sensitivity of trade flow to trade barriers from gravity equations, using different econometric techniques recently highlighted in the literature. Specifically, we compare a benchmark OLS fixed effects specification a la Feenstra (2002), with three emerging estimation methods: the standard Heckman correction for selection bias, to account for zero trade flow; its extension, recently proposed by Helpman et al. (2008), to control for firm heterogeneity; and, finally, the Poisson pseudo-maximum-likelihood (PPML) technique to correct for the presence of heteroskedasticity, first proposed by Santos Silva and Tenreyro (2006). Our gravity model includes trade among 211 exporter and 104 importer countries, in 18 food industry sectors.

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File URL: http://purl.umn.edu/44119
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Paper provided by European Association of Agricultural Economists in its series 2008 International Congress, August 26-29, 2008, Ghent, Belgium with number 44119.

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Date of creation: 2002
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Handle: RePEc:ags:eaae08:44119
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  1. Elhanan Helpman & Marc Melitz & Yona Rubinstein, 2007. "Estimating Trade Flows: Trading Partners and Trading Volumes," NBER Working Papers 12927, National Bureau of Economic Research, Inc.
  2. Anderson, Michael A. & Ferrantino, Michael J. & Schaefer, Kurt C., 2004. "Monte Carlos Appraisals of Gravity Model Specifications," Working Papers 15864, United States International Trade Commission, Office of Economics.
  3. Fontagne, Lionel & Mayer, Thierry & Zignago, Soledad, 2004. "Trade in the Triad: How Easy is the Access to Large Markets?," CEPR Discussion Papers 4442, C.E.P.R. Discussion Papers.
  4. Anne-Célia Disdier & Lionel Fontagné & Mondher Mimouni, 2008. "The Impact of Regulations on Agricultural Trade: Evidence from the SPS and TBT Agreements," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 90(2), pages 336-350.
  5. James E. Anderson & Eric van Wincoop, 2004. "Trade Costs," Boston College Working Papers in Economics 593, Boston College Department of Economics.
  6. Olper, Alessandro & Raimondi, Valentina, 2005. "Access to OECD Agricultural Market: A Gravity Border Effect Approach," 2005 International Congress, August 23-27, 2005, Copenhagen, Denmark 24543, European Association of Agricultural Economists.
  7. Femenia, Fabienne & Gohin, Alexandre, 2007. "Estimating price elasticities of food trade functions: How relevant is the gravity approach?," Working Papers 7211, TRADEAG - Agricultural Trade Agreements.
  8. Agostino, Maria Rosaria & Aiello, Francesco & Cardamone, Paola, 2007. "Analyzing the Impact of Trade Preferences in Gravity Models. Does Aggregation Matter?," Working Papers 7294, TRADEAG - Agricultural Trade Agreements.
  9. James E. Anderson & Eric van Wincoop, 2001. "Gravity with Gravitas: A Solution to the Border Puzzle," NBER Working Papers 8079, National Bureau of Economic Research, Inc.
  10. Joao Santos Silva & Silvana Tenreyro, 2005. "The log of gravity," LSE Research Online Documents on Economics 3744, London School of Economics and Political Science, LSE Library.
  11. Cipollina, Maria & Salvatici, Luca, 2007. "EU and developing countries: an analysis of preferential margins on agricultural trade flows," Working Papers 7219, TRADEAG - Agricultural Trade Agreements.
  12. Wilson, John S. & Tsunehiro Otsuki & Sewadeh, Mirvat, 2002. "Dirty exports and environmental regulation : do standards matter to trade?," Policy Research Working Paper Series 2806, The World Bank.
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