Competition and intellectual property (IP) protections are complements in stimulating innovation. When IP is appropriable, a market for inventions forms and competitive pressures increase incentives to innovate. Competition among producers, the demand side of the market for inventions, and...

Market organization significantly affects total output and incentives for firms to invest. I compare three types of market organization. In a market with search and random matching, total output is excessive and there are incentives for inefficient underinvestment. In a market with a monopoly...