Summary (from TFA): "...there is now extensive experience of all forms of privatisation [with] many studies of... comparative technical efficiency... results are remarkably consistent across all sectors and all forms of privatisation and outsourcing: there is no empirical evidence that the private sector is intrinsically more efficient. The same results emerge consistently from sectors and services which are subject to outsourcing, such as waste management, and in sectors privatised by sale, such as telecoms."