Estimating Technical Efficiency, Input substitution and complementary effects using Output Distance Function: A study of Cassava production in Nigeria
In this study, we estimate an output distance function in the context of a multi-output and multi-input production technology by stochastic frontier techniques. Unbalanced panel data for smallholder farms that grown cassava and other crops in Southwestern Nigeria covering 2006/07 to 2008/09 farming seasons is used for the analysis. The results show that the marginal rate of transformation (MRT) between “other crops” grown by the farmers and cassava produced relative to the output mix is negative and significantly different from zero. We observed also that increasing returns-to-scale as well as technical progress characterized cassava production in the region. Furthermore, fertilizer and pesticides are found to have significant substitution effects on cassava production in the sample. We also found evidence that, in pairs, farm size and pesticides, labour and fertilizer as well as fertilizer and pesticides jointly exhibit significant complementary effects on cassava production in the region. An average technical efficiency level of 72.1 percent which implies approximately a 39 percent inefficiency level is observed from the study. Over the seasons, we found significant evidence of an increasing trend in technical efficiency level of the farms. Extension, credit and, occupation (i.e., full time farming) are indentified as efficiency increasing policy variables from the study.
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- Subal Kumbhakar & Luis Orea & Ana Rodríguez-Álvarez & Efthymios Tsionas, 2007. "Do we estimate an input or an output distance function? An application of the mixture approach to European railways," Journal of Productivity Analysis, Springer, vol. 27(2), pages 87-100, April.
- Silvio Daidone & Francesco D’Amico, 2009.
"Technical efficiency, specialization and ownership form: evidences from a pooling of Italian hospitals,"
Journal of Productivity Analysis,
Springer, vol. 32(3), pages 203-216, December.
- Silvio Daidone & Francesco D'Amico, 2009. "Technical Efficiency, Specialization and Ownership Form: Evidences from a Pooling of Italian Hospitals," CEIS Research Paper 143, Tor Vergata University, CEIS, revised 30 Sep 2009.
- 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.
- Grosskopf, S. & Margaritis, D. & Valdmanis, V., 1995. "Estimating output substitutability of hospital services: A distance function approach," European Journal of Operational Research, Elsevier, vol. 80(3), pages 575-587, February.
- Paul, Catherine J. Morrison & Nehring, Richard, 2005. "Product diversification, production systems, and economic performance in U.S. agricultural production," Journal of Econometrics, Elsevier, vol. 126(2), pages 525-548, June.
- O'Donnell, Christopher J. & Coelli, Timothy J., 2005.
"A Bayesian approach to imposing curvature on distance functions,"
Journal of Econometrics,
Elsevier, vol. 126(2), pages 493-523, June.
- Tim J. Coelli & Chris O'Donnell, 2003. "A Bayesian Approach To Imposing Curvature On Distance Functions," CEPA Working Papers Series WP032003, School of Economics, University of Queensland, Australia.
- Caudill, Steven B. & Ford, Jon M., 1993. "Biases in frontier estimation due to heteroscedasticity," Economics Letters, Elsevier, vol. 41(1), pages 17-20.
- Jondrow, James & Knox Lovell, C. A. & Materov, Ivan S. & Schmidt, Peter, 1982. "On the estimation of technical inefficiency in the stochastic frontier production function model," Journal of Econometrics, Elsevier, vol. 19(2-3), pages 233-238, August.
- K. Hadri & C. Guermat & J. Whittaker, 2003. "Estimation of technical inefficiency effects using panel data and doubly heteroscedastic stochastic production frontiers," Empirical Economics, Springer, vol. 28(1), pages 203-222, January.
- George E. Battese, 1997. "A Note On The Estimation Of Cobb-Douglas Production Functions When Some Explanatory Variables Have Zero Values," Journal of Agricultural Economics, Wiley Blackwell, vol. 48(1-3), pages 250-252.
- Schmidt, Peter, 1988. "Estimation of a fixed-effect Cobb-Douglas system using panel data," Journal of Econometrics, Elsevier, vol. 37(3), pages 361-380, March.
- Bernhard Brümmer & Thomas Glauben & Geert Thijssen, 2002. "Decomposition of Productivity Growth Using Distance Functions: The Case of Dairy Farms in Three European Countries," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 84(3), pages 628-644.
- Maria L. Loureiro, 2009. "Farmers' health and agricultural productivity," Agricultural Economics, International Association of Agricultural Economists, vol. 40(4), pages 381-388, 07.
- Tim Coelli & Sergio Perelman, 2000. "Technical efficiency of European railways: a distance function approach," Applied Economics, Taylor & Francis Journals, vol. 32(15), pages 1967-1976.
- 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.
- Thiam, Abdourahmane & Bravo-Ureta, Boris E. & Rivas, Teodoro E., 2001.
"Technical efficiency in developing country agriculture: a meta-analysis,"
Agricultural Economics of Agricultural Economists,
International Association of Agricultural Economists, vol. 25(2-3), September.
- Thiam, Abdourahmane & Bravo-Ureta, Boris E. & Rivas, Teodoro E., 2001. "Technical efficiency in developing country agriculture: a meta-analysis," Agricultural Economics, Blackwell, vol. 25(2-3), pages 235-243, September.
- Glauben, Thomas & Lu, Wencong C. & Brümmer, Bernhard, 2003.
"Policy Reform And Productivity Change In Chinese Agriculture: A Distance Function Approach,"
2003 Annual Meeting, August 16-22, 2003, Durban, South Africa
25896, International Association of Agricultural Economists.
- Brummer, B. & Glauben, T. & Lu, W., 2006. "Policy reform and productivity change in Chinese agriculture: A distance function approach," Journal of Development Economics, Elsevier, vol. 81(1), pages 61-79, October.
- Brümmer, Bernhard & Glauben, Thomas & Lu, Wencong C., 2002. "Policy Reform and Productivity Change in Chinese Agriculture: A Distance Function Approach," 2002 International Congress, August 28-31, 2002, Zaragoza, Spain 24779, European Association of Agricultural Economists.
- Fare, Rolf, et al, 1993. "Derivation of Shadow Prices for Undesirable Outputs: A Distance Function Approach," The Review of Economics and Statistics, MIT Press, vol. 75(2), pages 374-80, May.
- Chambers,Robert G., 1988. "Applied Production Analysis," Cambridge Books, Cambridge University Press, number 9780521314275, December.
- Meeusen, Wim & van den Broeck, Julien, 1977. "Efficiency Estimation from Cobb-Douglas Production Functions with Composed Error," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 18(2), pages 435-44, June.
- Mundlak, Yair, 1996. "Production Function Estimation: Reviving the Primal," Econometrica, Econometric Society, vol. 64(2), pages 431-38, March.
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