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Pouvoir de marché dans la filière cacao : l'hypothèse de Prebisch – Singer revisitée

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  • Catherine Araujo Bonjean
  • Jean-François Brun

Abstract

This paper is based on Prebisch and Singer?s work on the deterioration in the terms of trade of developing economies. Using a game-theory model, we can explain the decline in the cocoa-bean price relative to the price of chocolate bars in the French market. One implication of the model is that the price of the raw material and the price of the end product depend respectively on the market power of the main world producer, Côte d?Ivoire, and of the manufacturers. We use an equation system to test for this market power. The results lead us to distinguish two modes of price formation. In the period 1960-1985, Côte d?Ivoire played a dominant role. Market power then gradually shifted from the country to the manufacturers.

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  • Catherine Araujo Bonjean & Jean-François Brun, 2008. "Pouvoir de marché dans la filière cacao : l'hypothèse de Prebisch – Singer revisitée," Economie & Prévision, La Documentation Française, vol. 0(5), pages 133-144.
    • Handle: RePEc:cai:ecoldc:ecop_186_0133
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    Cited by:

    1. Catherine ARAUJO BONJEAN & Jean-François BRUN, 2010. "Price Transmission in the Cocoa-Chocolate Chain," Working Papers 201003, CERDI.
    2. Catherine ARAUJO BONJEAN & Jean-François BRUN, 2014. "Chocolate price fluctuations may cause depression: an analysis of price pass-through in the cocoa chain," Working Papers 201420, CERDI.
    3. Coulibaly, Adama & Dembele, Ardjouma & Biego, Henri Marius Godi & Silue, Nahoule & Toure, A. Abba, 2012. "Evolution of the Merchantability and the Level of Ochratoxin A of Ivorian Cocoa Beans from Production Areas during the Harvest Season," Sustainable Agriculture Research, Canadian Center of Science and Education, vol. 1(2).
    4. Rogna Marco & Tillie Pascal, 2025. "An Analysis of Cocoa Market Fundamentals and Price Transmission in the Cocoa Value Chain," JRC Working Papers on Economic Analysis of Policies for Africa 2025-05, Joint Research Centre.

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