Acquiring innovation through M&A is subject to information frictions, as assessing the value of innovative targets is a challenging task. We find an inverted U-shaped relation between firm innovation and takeover exposure; equity usage increases with target innovation; and the deal completion rate drops with innovation. We develop and estimate a model of acquiring innovation under information frictions, featuring endogenous merger, innovation, and offer composition decisions. Our estimates suggest that acquirers’ due diligence reveals only 30% of private information possessed by targets. Eliminating information frictions increases capitalized merger gains by 59%, stimulates innovation, and boosts productivity, business dynamism, and social welfare.

An endogenous growth model is developed where each period firms invest in researching and developing new ideas. An idea increases a firm's productivity. By how much depends on the technological propinquity between an idea and the firm's line of business. Ideas can be bought and sold on a market for patents. A firm can sell an idea that is not relevant to its business or buy one if it fails to innovate. The developed model is matched up with stylized facts about the market for patents in the United States. The analysis gauges how efficiency in the patent market affects growth.