paper, we analyze a two-stage innovation game between one incumbent and a large number of entrants. In the first stage … innovation. In the second stage, successful entrants bid to be acquired by the incumbent. We assume that entrants cannot survive …&D approaches than the incumbent and are more likely to generate the highest value innovation. Thus, the need of entrants to be …

frontier. In vertically integrated firms, owners (managers) have to spend time both on production and innovation activities …, and this creates managerial overload, and discourages innovation. Outsourcing of some production activities mitigates the … frontier, the value of innovation increases, encouraging outsourcing. …

environment that allows ideas to cross firm boundaries enhances the rate of innovation and creates a symbiotic relationship …

option of selling to an incumbent increases innovation incentives for entrepreneurs when network effects are strong and … necessarily restrict innovation incentives. We also show that network effects promote acquisitions over entry and that the … entrepreneur has strong incentives to invest in the initial user base of the innovation. …

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 …

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 …