Patent race models assume that an innovator wins the only patent covering a product. But when technologies are complex … patent standards are low, firms build "thickets" of patents, especially incumbent firms in mature industries. When they … other hand, when lead time advantages are significant and patent standards are high, firms pursue strategies of "mutual non …

patent intensity (PI), patents received divided by market capitalization, available from 1926. On average, high PI firms …

panel econometrics. Transnational patent data in wind power technologies serve as the indicator for innovation. In addition …This paper explores factors driving innovation in wind power technologies in OECD countries by employing count data … to classical supply side policies, the set of explanatory variables also reflects insights from the systems of innovation …