The Mexican programme of bank privatisation in the early 1990s was dictated not just by a desire for distancing government from the running of the economy but also by the need to raise money by selling public assets in favour of a particular fiscal stance. The conflict of objectives entailed in...

We apply specifications of the random parameters stochastic frontier cost function model to estimate bank efficiency. This class of model appears to resolve the long standing problem of confounding inefficiency and heterogeneity. Mean cost efficiencies from random models are higher by as much as...