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Testing For Aggregation And Simultaneous Bias In U.S. Soybean Export Equations

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Author Info

  • Arnade, Carlos A.
  • Davison, Cecil W.

Abstract

Most previous estimates of elasticities of export demand for U.S. soybeans have emanated from single import equations subject to aggregation and simultaneous equation bias. This analysis tests U.S. soybean export data for aggregation and simultaneous equation bias and divides the aggregated data into six market equations to reduce these biases. Elasticity estimates from the six equations are compared with elasticity estimates from single equation OLS and 2SLS estimations using the same aggregate data. Results suggest that distortions from unjustified 2SLS estimation may exceed those from aggregation bias.

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Bibliographic Info

Article provided by Southern Agricultural Economics Association in its journal Southern Journal of Agricultural Economics.

Volume (Year): 21 (1989)
Issue (Month): 02 (December)
Pages:

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Handle: RePEc:ags:sojoae:30112

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Web page: http://www.saea.org/jaae/jaae.htm
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Related research

Keywords: International Relations/Trade;

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Cited by:
  1. Ahouissoussi, Nicolas B.C. & McIntosh, Christopher S. & Wetzstein, Michael E., 1995. "Rational Expectations Estimation Of Georgia Soybean Acreage Response," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 27(02), December.
  2. Shumway, C. Richard & Davis, George C., 2001. "Does consistent aggregation really matter?," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, Australian Agricultural and Resource Economics Society, vol. 45(2), June.
  3. Adhikari, Murali & Paudel, Laxmi & Houston, Jack E. & Paudel, Biswo Nath, 2003. "Measuring the Impacts of US Export Promotion Program for Wheat in Selected Importing Regions," 2003 Annual Meeting, February 1-5, 2003, Mobile, Alabama 35161, Southern Agricultural Economics Association.

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