Do firms respond to stronger patent protection by doing more R&D?

Abstract

We examine whether stronger intellectual property rites (IPR) promote firm R&D, using changes in the IPR of export-partner countries as an exogenous source of variation. Constructing an export-weighted index of trade partner IPR by country-industry-year, we find that R&D responds strongly to trade partner IPR, and this after including industry, year, country, and interacted fixed effects. We further find evidence of this relationship at the level of the establishment, using a unique Canadian dataset. Our results suggest a causal link between IPR and firm R&D investments.