The purpose of this study is to investigate the issue of efficiency in the U.S. motor carrier industry using DEA and SFA. While both methods used the same variables, the resulting efficiency scores were significantly different. This leads to the question of which method is a better measure of...

Here, using input, output and nitrogen pollution data related to one state, we propose to extend the elasticity concept to include environmental pollution treated as undesirable output to provide the environmentally adjusted elasticity measures for the period, 1936-1997 in a two-step procedure.

Using an econometric model the economic impact of the September 11, 2001(9/11) terrorists' attacks on the U.S. homeland on the trucking transportation sector in the United States is examined. Also, the econometric model was modified to show how this event may have inflicted economic damage on...

Past literature has examined the importance of farm programs on the volatility and returns on general and agriculture economic growth. The objective of this study was to assess the impact of farm program payments on technical efficiency. The study used aggregate state level panel data from the...

Dynamic shift-share analysis reveals that national growth effects were positive while industrial mix, competitive, and allocation effects were negative. Results also show the time(technology) variable were significantly and positively related to the competitive effects for coal, chemical...

This study addresses the impact of trade openness on technical efficiency in the U.S. agricultural sector. The results indicate that trade protectionism illustrated with a decrease in the share of agricultural imports in agricultural GDP led to an increase in technical efficiency. A change in...

Issues on energy have recently dominated the economic decisions of several states across the U.S. economy and states in the southeastern region of U.S. are no exception. Almost all the states in the southeast import virtually all of their fuel resources from the Gulf Coast representing an annual...

This study was conducted to analyze the direct and indirect effects of ethanol policy on livestock production. Results of the theoretical model indicate the possibility of ethanol policy indirectly affecting livestock production. Econometric results show a possibility of ethanol policy...