Scope economies and technical efficiency of cocoa agroforesty systems in Ghana
A number of studies have addressed issues relating to the physiological, environmental and economic values of trees in cocoa farming systems. However, to date, little has been done to quantitatively examine the effect of crop diversity on cocoa farming efficiency. This study therefore sets out to first investigate whether and to what extent crop diversity (defined as the mixing of cocoa with other crop species on farmers' plots) affects productivity on cocoa farms. Secondly, it sought to establish whether there are economies of scope (i.e., cost complementarities) from the sharing of farm inputs by crops on the same plots. Our results indicate that diversified (i.e., multi-crop) cocoa farms are more efficient than single (i.e., mono) crop farms. Furthermore, our estimate for the economies of scope parameter indicates possibilities for cost complementarities between production of cocoa and other crops on the same plot. We advocate further investigation on the issue of scope economies to determine which crop combinations offer better cost complementarities and also meet biodiversity conservation objectives.
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- Coelli, Tim & Fleming, Euan, 2004.
"Diversification economies and specialisation efficiencies in a mixed food and coffee smallholder farming system in Papua New Guinea,"
Blackwell, vol. 31(2-3), pages 229-239, December.
- Coelli, Tim J. & Fleming, Euan M., 2003. "Diversification Economies And Specialisation Efficiencies In A Mixed Food And Coffee Smallholder Farming System In Papua New Guinea," 2003 Annual Meeting, August 16-22, 2003, Durban, South Africa 25841, International Association of Agricultural Economists.
- Aigner, Dennis & Lovell, C. A. Knox & Schmidt, Peter, 1977. "Formulation and estimation of stochastic frontier production function models," Journal of Econometrics, Elsevier, vol. 6(1), pages 21-37, July.
- Alene, Arega D. & Manyong, Victor M. & Gockowski, James, 2006. "The production efficiency of intercropping annual and perennial crops in southern Ethiopia: A comparison of distance functions and production frontiers," Agricultural Systems, Elsevier, vol. 91(1-2), pages 51-70, November.
- Gholamreza Hajargasht & Tim Coelli & D. S. Prasada Rao, 2006.
"A Dual Measure of Economies of Scope,"
CEPA Working Papers Series
WP032006, School of Economics, University of Queensland, Australia.
- Son, Tran Vo Hung & Coelli, Tim & Fleming, Euan, 1993.
"Analysis of the technical efficiency of state rubber farms in Vietnam,"
Agricultural Economics of Agricultural Economists,
International Association of Agricultural Economists, vol. 9, September.
- Vo Hung Son, Tran & Coelli, Tim & Fleming, Euan, 1993. "Analysis of the technical efficiency of state rubber farms in Vietnam," Agricultural Economics, Blackwell, vol. 9(3), pages 183-201, September.
- Battese, G E & Coelli, T J, 1995. "A Model for Technical Inefficiency Effects in a Stochastic Frontier Production Function for Panel Data," Empirical Economics, Springer, vol. 20(2), pages 325-32.
- Joachim Nyemeck BINAM & Jim GOCKOWSKI & Guy Blaise NKAMLEU, 2008. "Technical Efficiency And Productivity Potential Of Cocoa Farmers In West African Countries," The Developing Economies, Institute of Developing Economies, vol. 46(3), pages 242-263.
- Gershon Feder & Rinku Murgai & Jaime B. Quizon, 2004.
"Sending Farmers Back to School: The Impact of Farmer Field Schools in Indonesia,"
Review of Agricultural Economics,
Agricultural and Applied Economics Association, vol. 26(1), pages 45-62.
- Feder, Gershon & Murgai, Rinku & Quizon, Jaime B., 2003. "Sending farmers back to school - the impact of farmer field schools in Indonesia," Policy Research Working Paper Series 3022, The World Bank.
- Villano, Renato A. & Lucas, Marilou P. & Pandey, Sushil, 2005. "An Analysis of Scope Economies and Technical Efficiency in Intensive Rainfed Lowland Rice-based Cropping Systems in Northwest Luzon, Philippines," 2005 Conference (49th), February 9-11, 2005, Coff's Harbour, Australia 139294, Australian Agricultural and Resource Economics Society.
- Catherine J. Morrison Paul & Warren E. Johnston & Gerald A. G. Frengley, 2000. "Efficiency in New Zealand Sheep and Beef Farming: The Impacts of Regulatory Reform," The Review of Economics and Statistics, MIT Press, vol. 82(2), pages 325-337, May.
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