We show that technology spillovers shift the composition of corporate research and development (R&D) by promoting innovation based on the exploitation of existing knowledge, while disincentivizing innovation that explores new areas and breaks new ground. Accordingly, firms facing large...

Using a difference-in-differences (DiD) setting that leverages the staggered adoption of R&D tax credits across the U.S. states, we show that after a firm receives the tax credits, products of its peers become significantly more similar to the recipient firm. Such product convergence is...