Spillover Effects of Patents and strengthening of Intellectual Property Rights on Productivity and Innovation: Intra- and Inter-industry Spillovers of IT Industry

특허권 강화와 특허출원 변화의 기술혁신 및 생산성 파급효과: 산업내 및 IT산업의 산업간 파급효과를 중심으로

Using patent and firm-level panel data for 1982-2001, this study investigates spillover effects of patents and the strengthening of intellectual property rights on Productivity and Innovation. As well as we consider the effect of intra-industry spillovers, we extend the effect to inter-industry spillovers which implies the effects of IT industries on non-IT industries. The empirical results are summarized as follows. First, allowing for firm-level variables, market competition and technological spillovers, the strengthening of intellectual property rights does not play a significant role on innovative activities. Second, while innovative activities of domestic firms affect significantly firms' innovative activities, those of foreign firms do not. Third, innovative activities of IT industries as inter-industry spillovers play a significant role on innovative activities and labor productivities of domestic firms.