Economists have long puzzled over the fact that large firms pay higher wages than small firms, even after controlling for worker’s observed productive characteristics. One possible explanation has been that firm size is correlated with unobserved productive attributes which confound firm...

The health consequences of child labor may take time to manifest themselves. This study examines whether children who began working at a young age experience increased incidence of illness or physical disability as adults.. When child labor and schooling are treated as chosen without...

The Iowa Department of Public Health has undertaken several independent projects to evaluate various aspects of the labor environment affecting Iowa healthcare over the recent past.  This research expands upon the results of these efforts to estimate the effects of a number of wage and nonwage...

  We hypothesize that hog production can be characterized by complementarities between new technologies, worker skills and farms size.  Such production processes are consistent with Kremer’s (1993) O-ring production theory in which a single mistake in any one of several complementary...

The Iowa Board of Nursing licensing database for Registered Nurses (RNs) contains information on Registered Nurses who have renewed their licenses including age, race, gender, education, and location of employment.  It also contains comparable information on nurses who opted not to renew at the...