Table 4. Regression of selected variables on the natural log of wages earned by Mexican migrants 1970-2009 (2010 dollars).
| Main Effect Model | Interactive Model | |||
|---|---|---|---|---|
| B | SE | B | SE | |
| Period | ||||
| 1992-1993 | -0.051 * | 0.027 | -0.05 * | 0.027 |
| 1994-1995 | -0.057 ** | 0.023 | -0.056 ** | 0.023 |
| 1996-1997 | 0.006 | 0.03 | 0.006 | 0.023 |
| 1998-1999 | 0.134 *** | 0.028 | 0.134 *** | 0.028 |
| 2000-2001 | 0.077 ** | 0.031 | 0.078 ** | 0.031 |
| 2002-2003 | 0.126 *** | 0.029 | 0.127 *** | 0.029 |
| 2004-2005 | 0.143 *** | 0.032 | 0.143 *** | 0.032 |
| 2006-2009 | 0.041 | 0.079 | 0.037 | 0.079 |
| Individual Characteristics | ||||
| Age on last trip | 0.019 *** | 0.005 | 0.02 *** | 0.005 |
| Age on last trip squared | -0.0003 *** | 0.0001 | -0.0003 *** | 0.0001 |
| Female | -0.163 *** | 0.028 | -0.163 *** | 0.028 |
| Undocumented on last trip | -0.141 *** | 0.021 | -0.083 ** | 0.034 |
| Temporary worker on last trip | -0.105 * | 0.056 | -0.085 | 0.058 |
| Unskilled occupation on last trip | 0.044 ** | 0.019 | 0.043 ** | 0.019 |
| Skilled occupation on last trip | 0.143 *** | 0.023 | 0.14l|*** | 0.023 |
| School years completed | 0.011 *** | 0.003 | 0.0106 *** | 0.003 |
| Household head | 0.061 *** | 0.017 | 0.06 *** | 0.017 |
| Priortrips | 0.005 ** | 0.002 | 0.005 ** | 0.002 |
| Prior months in U.S. | 0.0002 *** | 0.0001 | 0.0008 *** | 0.0002 |
| Months of last trip | 0.004 *** | 0.0003 | 0.004 *** | 0.0003 |
| Contextual Circumstances | ||||
| Pct undoc in state/year | -0.011 *** | 0.003 | -0.001 | 0.005 |
| Undocumented × Pct undoc | -0.013 ** | 0.006 | ||
| Constant | 1 717 *** | 0.091 | 1.677 *** | 0.094 |
| Observations | 3714 | 3714 | ||
| R-squared | 0.168 | 0.168 | ||
***
p<0.01,
**
p<0.05,
*
p<0.1