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Immigration Policy And The Agricultural Labor Market: The Effect On Job Duration


  • Iwai, Nobuyuki
  • Napasintuwong, Orachos
  • Emerson, Robert D.


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, authorized, permanent resident, or citizen. The duration model is estimated conditionally upon the worker's legal status to address selectivity bias. The duration estimation has significant coefficients on the selection bias correction term for all legal status equations except for that of citizen workers. The most important finding from our estimation is that unauthorized workers do not necessarily have shorter farm job durations than legal workers. First, the average predicted farm job duration for unauthorized workers is the second longest among the four legal status categories. Second, the simulation analysis indicates that the duration of the "typical" unauthorized worker will be longer when working under an authorized or permanent resident status.

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  • Iwai, Nobuyuki & Napasintuwong, Orachos & Emerson, Robert D., 2005. "Immigration Policy And The Agricultural Labor Market: The Effect On Job Duration," 2005 Annual meeting, July 24-27, Providence, RI 19501, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
  • Handle: RePEc:ags:aaea05:19501

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    References listed on IDEAS

    1. Hashida, Emiko & Perloff, Jeffrey M, 1996. "Duration of agricultural employment," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt5rr3v96v, Department of Agricultural & Resource Economics, UC Berkeley.
    2. Lee, Lung-Fei, 1983. "Generalized Econometric Models with Selectivity," Econometrica, Econometric Society, vol. 51(2), pages 507-512, March.
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    1. Iwai, Nobuyuki & Emerson, Robert D. & Walters, Lurleen M., 2006. "Farm Employment Transitions: A Markov Chain Analysis with Self-Selectivity," 2006 Annual meeting, July 23-26, Long Beach, CA 21353, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).

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    Labor and Human Capital;


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