We examine the determinants of vertical acquisitions using product text linked to product vocabulary from the input-output tables. We find that the stage of innovation is important in understanding vertical integration. R\&D-intensive firms are less likely to become targets in vertical...

We examine the determinants of startups' exits using novel technology measures based on patent text. We propose that innovation in rapidly evolving technology areas substitute existing technologies, creating a path to an independent market presence. Startups innovating in rapidly evolving areas...

We examine the importance of firm integration to outcomes of mergers and acquisitions using new ex ante product-based measures of firm integration. Our framework allows us to measure ex ante integration risk for both observed acquisitions and proposed acquisitions that might not materialize. As...

Using new measures of expanded Internet access in China and internet-based search, we examine how competitive shocks from China impact U.S. innovation through the markets for innovation and existing products. We identify shocks to innovation and existing product competition using the geography...