Column 6 replaces the occupation fixed effects by fixed effects for job cells, defined as the interaction of firms and (requested) occupations.
We also estimated models that include occupation fixed effects, hence allowing different occupations to have different degrees of job matching on average.
The available data on seasonality fix the occupation of levels I III from the spring to the autumn.
It reports both the coefficient estimates of the Mexican presence variable on the log of hourly earnings, using OLS estimates without occupation fixed effects (column 2) as a baseline, OLS estimates with occupation fixed effects (column 3), and the IV estimates (columns 4 to 6).
We also estimate a specification that includes industry and occupation fixed effects for employed individuals.
The coefficient estimates are less negative in the OLS with occupation fixed effects, but not entirely erased.
Our findings are robust to the inclusion of workplace social support, health status, province and occupation fixed effects.
The IV estimate for the pooled sample is more negative than the OLS model estimates with and without occupation fixed effects.
However, adding these controls for industry and occupation fixed effects do not affect the sign, magnitude or significance of any of our measures of academic or job diversity.
The equation also includes the unemployment rate, controls for age and education as well as region, time and occupation fixed effects.
Results reveal that the returns to schooling and work experience significantly increase with the GDP per capita of an immigrant's country of birth, even when incorporating country of birth fixed effects and occupation and industry controls in the regression.
