questions. The economy consists of many industries and firms engaged in cumulative (step-by-step) innovation. IPR policy … past innovations. With full patent protection, followers can catch up to the leader in their industry either by making the … same innovation(s) themselves or by making some pre-specified payments to the technological leaders. We prove the existence …

Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in … linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 …

This paper studies a simple model of experimentation and innovation. Our analysis suggests that patents may improve the … project to implement. A successful innovation can be copied by other firms. Symmetric equilibria (where actions do not depend … equilibria). In contrast to patents, subsidies to experimentation, research, or innovation cannot typically achieve this …

While the importance of innovation to economic development is widely understood, the conditions conducive to it remain … relating to the economics of innovation and technological change while revisiting the findings of a classic book. Central to … public and private sectors affects innovation. Other essays examine the practice of open research and how the diffusion of …

Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in … linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 …

dirty innovation and production; (ii) optimal policy involves both 'carbon taxes' and research subsidies, so that excessive … the switch to clean innovation under laissez-faire when the two inputs are substitutes. Under reasonable parameter values …

We build a model of firm-level innovation, productivity growth and reallocation featuring endogenous entry and exit. A …

We study a dynamic general equilibrium model where innovation takes the form of the introduction new goods, whose … production requires skilled workers. Innovation is followed by a costly process of standardization, whereby these new goods are … substitution between goods and other parameters. Third, we show that the interplay between innovation and standardization may lead …