The author investigates the determinants of the hazard rates of both starting and quitting the cigarette smoking habit. The model is an ordered probit split-sample duration model with lagged duration dependence and time-varying covariates (cigarette price and regulation). Duration of the smoking...

The Appalachian Regional Commission's definition of the Appalachian region is the one used most often by scholars, politicians, and the popular press. The uncritical use of this definition of Appalachia raises issues of both selection bias and excess heterogeneity in regression analysis of...