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Quality contingent contracts : evidence from Tanzania's coffee market

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  • Mahdi, Shireen

Abstract

The literature on product quality in markets where product attributes are not readily observable indicates that information asymmetries and incentive problems may lead to the under-provision of quality. This paper contributes to this literature by estimating the effects of village-level contractual arrangements on producer incomes and on quality enhancing production practices. Three contract types are studied: spot contracts, contingent contracts with product grading and contingent contracts without product grading. To do this, the study uses original data from a survey of 450 coffee producers in Tanzania's coffee market that take advantage of contractual variation in the Kilimanjaro region. The results indicate that coffee contracts that include village-based product grading have a large positive effect on producer incomes, and that the grading effect is associated with production practices that enhance quality. The results also indicate that cooperative membership has no significant effect on producer incomes.

Suggested Citation

  • Mahdi, Shireen, 2012. "Quality contingent contracts : evidence from Tanzania's coffee market," Policy Research Working Paper Series 6171, The World Bank.
  • Handle: RePEc:wbk:wbrwps:6171
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    References listed on IDEAS

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    1. Miyata, Sachiko & Minot, Nicholas & Hu, Dinghuan, 2009. "Impact of Contract Farming on Income: Linking Small Farmers, Packers, and Supermarkets in China," World Development, Elsevier, vol. 37(11), pages 1781-1790, November.
    2. Winter-Nelson, Alex & Temu, Anna, 2002. "Institutional Adjustment and Transaction Costs: Product and Inputs Markets in the Tanzanian Coffee System," World Development, Elsevier, vol. 30(4), pages 561-574, April.
    3. Christoph Saenger & Matin Qaim & Maximo Torero & Angelino Viceisza, 2013. "Contract farming and smallholder incentives to produce high quality: experimental evidence from the Vietnamese dairy sector," Agricultural Economics, International Association of Agricultural Economists, vol. 44(3), pages 297-308, May.
    4. Alexander, Corinne E. & Goodhue, Rachael E. & Rausser, Gordon C., 2007. "Do Incentives For Quality Matter?," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 39(01), April.
    5. Rachael E. Goodhue & Sandeep Mohapatra & Gordon C. Rausser, 2010. "Interactions Between Incentive Instruments: Contracts and Quality in Processing Tomatoes," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 92(5), pages 1283-1293.
    6. Rachael E. Goodhue, 2011. "Food Quality: The Design of Incentive Contracts," Annual Review of Resource Economics, Annual Reviews, vol. 3(1), pages 119-140, October.
    7. Steven Wu & Brian Roe, 2005. "Behavioral and Welfare Effects of Tournaments and Fixed Performance Contracts: Some Experimental Evidence," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(1), pages 130-146.
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    Cited by:

    1. Bernard, Tanguy & Hidrobo, Melissa & Le Port, Agnès & Rawat, Rahul, 2017. "Nutrition incentives in dairy contract farming in northern Senegal," IFPRI discussion papers 1629, International Food Policy Research Institute (IFPRI).

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    Keywords

    Crops&Crop Management Systems; Debt Markets; Markets and Market Access; Labor Policies; E-Business;

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