In this paper we examine the efficiency of public service delivery at regional level in two countries, the UK and China. We introduce a method based on Data Envelopment Analysis (DEA) which measures the aggregate country level inefficiency. This country level inefficiency is then decomposed into...

A primal index of productivity change is introduced which decomposes exactly in three components: technical change, technical efficiency change and average scale economies (radial scale change). The proposed index is invariant to movement along indifference surfaces and it collapses to the...