Soil Conservation and Technical Efficiency Among Hillside Farmers in Central America: A Switching Regression Model

Daniel Solis, Boris Bravo-Ureta and Ricardo E. Quiroga

No 2006/01, Efficiency Series Papers from University of Oviedo, Department of Economics, Oviedo Efficiency Group (OEG)

Abstract: The main objective of this paper is to evaluate and analyze technical efficiency (TE) levels for hillside farmers under different levels of adoption of soil conservation in El Salvador and Honduras. A switching regression model is implemented to examine potential selectivity bias for high and low level adopters, and separate stochastic production frontiers, corrected for selectivity bias, are estimated for each group. The main results indicate that households with above-average adoption show statistically higher average TE than those with lower adoption. Households with higher adoption have smaller farms and display the highest partial output elasticity for land. Constraints in the land and credit markets are likely explanations for these differences. In addition, all estimated models show that TE has a positive and significant association with education and extension.

Keywords: Central America; soil conservation; switching regression; efficiency (search for similar items in EconPapers)
Pages: 27
Date: 2006
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Citations: View citations in EconPapers (1)

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Related works:
Journal Article: Soil conservation and technical efficiency among hillside farmers in Central America: a switching regression model (2007)
Journal Article: Soil conservation and technical efficiency among hillside farmers in Central America: a switching regression model * (2007)
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