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

This paper presents the first part of an ongoing project whose objective is to present a long term relationship between conservation tillage, adoption of GE crops and pesticide use for major crops in the United States. In addition, the project aims to provide some innovative tests on causality...

This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, conditioning or accounting for HT corn with other...

This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, conditioning or accounting for HT corn with other...

Productive utilization of resources has enabled American agriculture to supply the nation with vast quantities of food at a high level of efficiency. However, the USDA shows that 2011 pesticide expenses increased by about $100 million resulting from a slight increase of planted acres and a...

This study presents recent results on the impact of adopting Bt corn on farm profits, yields, and seed and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity and uses farm-level survey data for 2010. Results confirm previous findings that Bt...

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...

A notable feature of the adoption of genetically engineered (GE) corn is the rapid growth in seed prices accompanied by rapid increases in GE corn with multiple (stacked) traits, which have often seen to offer several advantages to farmers, particularly increased yields. This paper presents...

The objective of this study is to assess the scale and technical efficiencies and other economic performance measures of southeastern U.S. cow-calf farms. We describe and compare cow-calf operations by size and farm resource region and measure their relative competitiveness. We estimate an input...