Replaced with revised version of paper 04/20/10.

This study examines the impact of adopting Bt corn on farm profits, yields, and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity. The model is estimated using nationwide farm-level survey data for 2005. Regression analysis confirms that Bt...

The impact of integrated pest management (IPM) on pesticide use, toxicity and other environmental characteristics, yields, and farm profits is examined for grape growers. The method is generally applicable for technology adoption and accounts for self-selectivity, simultaneity, and theoretical...

This paper examines how off-farm work affects the economic performance of crop and (selected) livestock farms. It estimates returns to scale and technical efficiency following an input distance function approach and compares the relative performance of dairy and corn farm operator households...

Replaced with revised version of paper 07/15/08.

This study estimates farm-level effects of adopting 1997 herbicide-tolerant soybeans, Bt cotton, and herbicide-tolerant cotton and compares results obtained from various data sources. While adopters' yields are generally higher and pest control costs lower than those of nonadopters, considerable...