Papers (downloadable using Adobe Reader)

2007, "On-site Costs and Benefits of Soil Conservation among Hillside Farmers in El Salvador."

2007, "Soil Conservation and Technical Efficiency among Hillside Farmers in Central America: A Switching Regression Model."

2007, "Technical Efficiency in Farming: A Meta-Regression Analysis."

2006, "Adoption of Soil Conservation Technologies in El Salvador: A Cross-Section and Over-time Analysis."

2006, "Output Diversification among Small-Scale Hillside Farmers in El Salvador."

2006, "Retornos a la inversión en investigación y medidas de eficiencia tecnica en la agricultura: una comparación de la evidencia internacional."

2006, "Medidas de eficiencia técnica para pequeños productores de leche del sur de Chile: Un análisis con fronteras estocásticas y datos de panel desbalanceado."

2006, "Multi-output Technical Efficiency for Argentinean Dairy Farms Using Stochastic Production and Stochastic Distance Frontiers with Unbalanced Panel Data."

2006, "Technical Efficiency and Adoption of Soil Conservation in El Salvador and Honduras."

2006, "The Impact of Soil Conservation and Output Diversification on Farm Income in Central American Hillside Farming."

2005, "Adoption of Conservation Technologies among Hillside Farmers in Honduras and El Salvador."

2005, "Economic and Financial Sustainability of Private Agricultural Extension in El Salvador."

2004, "Medidas alternativas de eficiencia técnica en tambos de la Argentina, utilizando una frontera de producción estocástica y datos de panel desbalanceado."

2004, "Alternative Technical Efficiency Measures for Argentinean Dairy Farms Using Stochastic Production Frontier and Unbalanced Panel Data."

2004, "Productividad total de los factores en la agricultura chilena: 1961-1996."

2004, "An Economic Analysis of Agricultural Production in Senegal: A Case Study of the Thiès and Diourbel Regions."

2003, "The Analysis of Technical Efficiency for Small Dairy Farms in Southern Chile: A Stochastic Frontier Analysis with Unbalanced Panel Data."

2003, "Fertility Desires and Sample Selection Bias: The Case of Senegal."

2003, "Research, Extension and Information: Key Inputs in Agricultural Productivity Growth."

2003, "Análisis del impacto económico de tres proyectos de manejo de recursos naturales en América Central."

2001, "Efficiency Analysis of Developing Country Agriculture: A Review of the Frontier Function Literature."

2001, "Technical Efficiency in Developing Country Agriculture: A Meta-Analysis."

2001, "A Meta-Analysis of Technical Efficiency in Farming: A Multi-Country Perspective."

1997, "Technical, Economic, and Allocative Efficiency in Peasant Farming: Evidence from the Dominican Republic."

1996, "Technical Efficiency Measures for Dairy Farms Using Panel Data: A Comparison of Alternative Model Specifications."

1996, "Migration Decisions, Agrarian Structure, and Gender: The Case of Ecuador."

1995, "An Econometric Decomposition of Dairy Output Growth."

1994, "Análisis de costos en explotaciones lecheras de la región central Argentina con algunas comparaciones internacionales."

1994, "Efficiency in Agricultural Production: The Case of Peasant Farmers in Eastern Paraguay."

1993, "Análisis de la eficiencia técnica mediante funciones estocásticas de frontera: El caso de la cuenca lechera central argentina."

1991, "Dairy Farms Efficiency Measurement Using Stochastic Frontiers and Neoclassical Duality."

1990, "Alternative Production Frontier Methodologies and Dairy Farm Efficiency."

1986. "Technical Efficiency Measures for Dairy Farms Based on a Probabilistic Frontier Function Model."