): "The Book Republication Program (BRP) allowed US publishers to violate German-owned copyrights....[W]e find that this change led to a substantial increase in citations to affected books. Intensity regressions show that this increase was driven by reductions in the price of books. A geographic analysis of library holdings and citations suggests that lower prices for BRP books allowed a new group of researchers at less affluent institutions to use these books in their own research." 