The influence of patent protection on firm innovation investment in manufacturing industries

Countries enact various mechanisms, such as patent protection, to encourage, protect, and reward firm innovation. The degree to which these mechanisms afford firms protection over their intellectual property influences the innovation strategy that firms pursue and innovation investments they make. To date, empirical evidence on the relationship between patent protections and firm innovation is lacking, despite the relationship being the subject of intense theoretical and policy debate. To further consider the influences on firm innovation, we test the influence of a country's patent rights and changes in them on firm-level investment in innovation. Data for 706 firms competing in ten manufacturing industries across 29 countries were gathered and analyzed. Even after controlling for various firm, industry, and national factors, there is a strong positive influence of patent rights and changes in patent rights on a firm's propensity to invest in innovation. In addition, we consider the sensitivity of this result to alternative measures of patent and other intellectual property protection. We also find that the influence of patent rights on firm-level innovation varies across industries for example, the impact appears greatest in the scientific instruments and industrial chemicals industries. (C) 2007 Elsevier Inc. All rights reserved.