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...

Using survey data from 2009 to 2011, we analyse the effects of the recent euro area economic, financial and private debt crisis on the supply of and demand for bank finance for small and medium enterprises (SMEs). At the country level, we identify three distinct aspects of the recent crisis in...