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

Catherine Araujo Bonjean and Jean Brun ()

Economie & Prévision, 2008, vol. n° 186, issue 5, 133-144

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.

Keywords: terms of trade; cointegration with break; Kalman filter; cocoa (search for similar items in EconPapers)
Date: 2008
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Journal Article: Pouvoir de marché dans la filière cacao: l’hypothèse de Prebisch – Singer revisitée (2008)
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