This paper analyzes changes in U.S. agricultural technology during 1960-1999, emphasizing the role of immigrant workers on farm mechanization. The rates and directions of biased technological change based on the induced innovation theory are compared before and after the passage of the...

We have proposed and estimated a Heckman-type two stage model with legal status of farm workers using an ordered probit model in the first stage and a duration model in the second stage. Using the National Agricultural Workers Survey, self-reported legal status categories are: unauthorized,...

A multi-output cost function approach to induced innovation is adopted to analyze the impact of socioeconomic variables and institutional factors on technological change in agriculture. Focusing on the impact of immigration policy and farm mechanization, the study includes variables such as H-2A...