This paper compares standard stochastic frontier models for panel data with a number of recently developed models designed to remove unobserved heterogeneity from the inefficiency component. Results are used to construct a generalised Malmquist total factor productivity (TFP) index. We conclude...

This article compares standard stochastic frontier models for panel data with a number of recently developed models which attempt to control for unobserved heterogeneity in the inefficiency component. Results are used to construct a generalized Malmquist Total Factor Productivity (TFP) index for...

This paper explores the variables that affect the probability of donating to charity and those that affect the size of donations by Irish households. The dataset employed is the Irish Household Budget Survey (HBS) 1999/2000, which is analysed using a tobit model and doublehurdle model with an...