-focused patents are the socially efficient way to reward innovation, and also show when very short-lived but very broad patents are …

sectors (inter-sectoral spillovers), or at the international level. We find that innovation is strongly driven by knowledge … spillovers, especially those occurring at the national level. Wind and solar technologies exhibit distinct innovation … only influential in the case of wind technology. We also find evidence that public R&D stimulates innovation, particularly …

produced at least one major innovation at any time in the United Kingdom from 1945–82. Both datasets yield the same conclusion …

imitate by hiring a worker from a firm that has already innovated. We show that if innovation firms can commit to long … contracts, there is too little innovation and too much imitation in equilibrium. Our model is tractable and allows us to analyze … welfare effects of various policies in the limited commitment case. We find that subsidizing innovation and taxing imitation …

firm's incentives for R&D. These changes influence the probability of innovation through two effects: changes in total R … shift from the rival firm to the dominant firm is a good thing as it decreases the likelihood of duplicate innovation (we … rights are strong. That is, firm dominance is good for innovation when (but only when) property rights are strong. We also …

innovation activities. The selection of high-skill managers is more important for innovation activities. As the economy … investments, but little selection. Closer to the world technology frontier, there is a switch to an innovation-based strategy with …

innovation and imitation. We develop a theoretical model showing that skilled labour has a higher growth-enhancing effect closer … to the technological frontier under the reasonable assumption that innovation is a relatively more skill intensive …