Beyond the obvious salary issue, we identified a second reason why the teachers in our study moonlighted
: The working conditions at their schools were poor.
Consequently, a Tobit model would seem more appropriate as it would take into account the censored nature of the distribution of working men and women's moonlighting hours by modeling the likelihood of moonlighting and the hours moonlighted
as a function of the same covariates.
The share of adults who moonlighted
in order to build a business or get experience in a second job decreased with age, and the share of workers who moonlighted
because they enjoyed the second job tended to decrease with age.
The variable of interest, specified as moonlighted
for this study, is a dummy variable equal to 1 if the individual worked multiple jobs at the same time during 1986 and equal to 0 otherwise.