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Joint evolution of spatial integration and product segmentation on agricultural markets: the case of cereals in Mali

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  • Aubert, Magali
  • Bignebat, Celine
  • Egg, Johny

Abstract

Within the context of liberalisation experienced by the Malian economy since the beginning of the 1990s, spatial integration of cereal markets has been considered as a major tool as to avoid localised shortages due to production shortfalls. However, market dynamic reveals since then new patterns: the diversification of urban consumer demand towards "modern cereals", in particular rice and maize, drives the segmentation of the cereal market. As consumer s are likely to substitute traditional cereals, like millet and sorghum, for other cereal types, new market segments emerge. We account for this evolution with a theoretical model à la Hotelling : the good is considered according to two characteristics, the spatial localisation (local market) and the cereal type. We show that, as far as market integration implies the reduction of transaction, it affects the strategic decisions of sellers. In fact, incentives to invest in product differentiation (and exploit new market segments) rises relatively to the incentives to take advantage of spatial price differentials, as they decrease. Last, we test this analytical proposition on price data collected by the agricultural market information system (SIM/PAM) from 1990 to 2004 on 6 local markets in central and northern Mali. We apply a vector error - correction model, and find evidence for the intensification of spatial co- integration relations during the period. Moreover, we relate this latter dynamics to the evolution towards the segmentation of cereal markets in Mali. Last, the leader markets of this progression are identified as being the central urban markets.

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Bibliographic Info

Paper provided by European Association of Agricultural Economists in its series 98th Seminar, June 29-July 2, 2006, Chania, Crete, Greece with number 10103.

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Date of creation: 2006
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Handle: RePEc:ags:eaae98:10103

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Keywords: product differentiation; co- integration; cereals; Mali; Marketing;

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Cited by:
  1. Kelly, Valerie A. & Murekezi, Abdoul Karim & Me-Nsope, Nathalie Mongue & Perakis, Sonja Melissa & Mather, David, 2013. "Cereal Market Dynamics: The Malian Experience from the 1990s to Present," Food Security International Development Working Papers 146935, Michigan State University, Department of Agricultural, Food, and Resource Economics.

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