THE IMPACT OF UNIONIZATION ON MOTOR CARRIER COSTS

Union trucking firms have significantly different cost structures than non-union firms. Further, average costs for union firms are higher than for non-union firms even after controlling for higher unionized labor costs. The translog cost function approach used here incorporates a unique dummy variable technique to test not only for overall differences in union/non-union costs, but also to identify which individual cost function parameters differ between the two types of firms. Results suggest that unionized trucking firms are at a competitive disadvantage in the less regulated, post-1980 trucking industry.     

ESTIMATING A LOGIT MODEL WITH RANDOMIZED DATA: THE CASE OF COCAINE USE

In his influential book, Maddala (1983) suggests combining randomized response survey data with other personal information to estimate logit models predicting immoral, unpopular, or unlawful behaviour. This study is one of the first to implement this technique using real data. Models of college students' recent cocaine use are estimated with academic performance and socio-economic characteristics as determinants. Parameter estimates obtained from randomized response surveys are compared to those obtained using conventional, direct question surveys. The results indicate that randomized response estimates provide useful information on the degree to which inferences regarding the determinants of cocaine use are sensitive to survey type.