Arbia, Giuseppe; Espa, Giuseppe; Giuliani, Diego; … - Dipartimento di Economia e Management, Università … - 2015
The presence of knowledge spillovers and shared human capital is at the heart of the Marhall-Arrow- Romer externalities hypothesis. Most of the earlier empirical contributions on knowledge externalities, however, considered data aggregated at a regional level so that conclusions are based on the...