From the observation that many public goods ?such as zoos? are indivisible, OATES (1988) put forward the idea that the range of public goods should increase with localities? size; this is the "zoo effect". But despite this argument appears obvious, it suffers from a limited empirical literature....

The paper looks at the genesis of innovation in the EU regions in order to shed light on the link between innovative inputs (R&D and Human Capital) and the genesis of economically valuable knowledge. The "traditional" regional Knowledge Production Function (KPF) is innovatively developed in...