This paper aims at assessing the magnitude of R&D spillover effects on large international R&D companies’ productivity growth. In particular, we investigate the extent to which R&D spillover effects are intensified by both geographic and technological proximities between spillover generating...

This Paper uses monthly data from a differentiated market dominated by a duopoly to analyse the nature of interactions between competitor firms. The incumbent, Canal Satellite, and the entrant, TPS, have dominated the French satellite pay-TV market, characterized by a monopoly until the end of...