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A spatio-temporal analysis of agricultural prices: An application to Colombian data

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  • Ana Maria Iregui

    ()

  • Jesús Otero

    ()

Abstract

This paper studies whether the geographical separation of markets constitutes a factor that helps explain the dynamics of agricultural prices. To do this, we employ a highly disaggregated dataset for Colombia that consists of weekly observations on wholesale prices for 18 agricultural products traded in markets scattered around the country. The sample period spans for almost a decade. According to our results, which are based on generalised impulse response functions, distance (and thus transportation costs) is a factor that helps explain the speed at which prices adjust to shocks in other locations, thus confirming that price adjustments take longer for markets farther apart.

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Bibliographic Info

Paper provided by Banco de la Republica de Colombia in its series Borradores de Economia with number 734.

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Length: 25
Date of creation: Sep 2012
Date of revision:
Handle: RePEc:bdr:borrec:734

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Keywords: Price analysis; market integration; agriculture; Colombia. Classification JEL: O18; Q13; R12.;

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  1. Goletti, Francesco & Babu, Suresh, 1994. "Market liberalization and integration of maize markets in Malawi," Agricultural Economics: The Journal of the International Association of Agricultural Economists, International Association of Agricultural Economists, vol. 11(2-3), December.
  2. Christopher B. Barrett, 1996. "Market Analysis Methods: Are Our Enriched Toolkits Well Suited to Enlivened Markets?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(3), pages 825-829.
  3. Goldberg, Pinelopi & Verboven, Frank, 2001. "Market Integration and Convergence to the Law of One Price: Evidence from the European Car Market," CEPR Discussion Papers 2926, C.E.P.R. Discussion Papers.
  4. DeJong, David N. & Nankervis, John C. & Savin, N. E. & Whiteman, Charles H., 1992. "The power problems of unit root test in time series with autoregressive errors," Journal of Econometrics, Elsevier, vol. 53(1-3), pages 323-343.
  5. Williams, Christine H. & Bewley, Ronald A., 1993. "Price Arbitrage Between Queensland Cattle Auctions," Australian Journal of Agricultural Economics, Australian Agricultural and Resource Economics Society, vol. 37(01), April.
  6. Engel, Charles & Rogers, John H, 1996. "How Wide Is the Border?," American Economic Review, American Economic Association, vol. 86(5), pages 1112-25, December.
  7. Pesaran, M. H. & Shin, Y., 1997. "Generalised Impulse Response Analysis in Linear Multivariate Models," Cambridge Working Papers in Economics 9710, Faculty of Economics, University of Cambridge.
  8. Ana María Iregui & Jesús Otero, 2008. "Testing the law of one price in food markets: evidence for Colombia using disaggregated data," DOCUMENTOS DE TRABAJO 005102, UNIVERSIDAD DEL ROSARIO.
  9. Christine H. Williams & Ronald A. Bewley, 1993. "Price Arbitrage Between Queensland Cattle Auctions," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 37(1), pages 33-55, 04.
  10. Goletti, Francesco & Babu, Suresh, 1994. "Market liberalization and integration of maize markets in Malawi," Agricultural Economics, Blackwell, vol. 11(2-3), pages 311-324, December.
  11. Seong, Byeongchan & Mahbub Morshed, A.K.M. & Ahn, Sung K., 2006. "Additional sources of bias in half-life estimation," Computational Statistics & Data Analysis, Elsevier, vol. 51(3), pages 2056-2064, December.
  12. Barry K. Goodwin & Thomas J. Grennes & Christine McCurdy, 1999. "Spatial price dynamics and integration in russian food markets," Journal of Economic Policy Reform, Taylor & Francis Journals, vol. 3(2), pages 157-193.
  13. Baba, Chikako, 2007. "Price dispersion across and within countries: The case of Japan and Korea," Journal of the Japanese and International Economies, Elsevier, vol. 21(2), pages 237-259, June.
  14. Morshed, A.K.M. Mahbub & Ahn, Sung K. & Lee, Minsoo, 2006. "Price convergence among Indian cities: A cointegration approach," Journal of Asian Economics, Elsevier, vol. 17(6), pages 1030-1043, December.
  15. White, Halbert, 1980. "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity," Econometrica, Econometric Society, vol. 48(4), pages 817-38, May.
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