This paper examines Total Factor Productivity (TFP) and knowledge flows, using international patent data. The result is a measure of technology that isolates sources of innovation and their contributions to domestic TFP. Within-industry innovation enhances domestic productivity, and domestic...

We study the relationship between patents and actual product innovation in the market, and how this relationship varies with firms' market share. We use textual analysis to create a new data set that links patents to products of firms in the consumer goods sector. We find that patent filings are...

This working paper reviews recent empirical evidence on large firms and nonproductive strategies that hinder creative destruction and reallocation. The focus is on three types of nonproductive strategies: political connections, nonproductive patenting, and anticompetitive acquisitions. Across...