-
Climbing the drug staircase: a Bayesian analysis of the initiation of hard dr...
Since empirical studies have shown that cannabis users are much more likely to initiate hard drug use, a causal linkage has been suggested (?gateway hypothesis?). However,... -
Estimating the returns to schooling: a likelihood approach based on normal mi...
In this paper we develop likelihood-based methods for statistical inference in a joint system of equations for the choice of length of schooling and earnings. The model for...