Gambardella, Alfonso; Harhoff, Dietmar; Verspagen, Bart - C.E.P.R. Discussion Papers - 2013
Patent holders may choose to protect innovations with single patents or to develop portfolios of multiple, related … inventions. We propose a simple decision-making model in which patent-holders may allocate resources to either expanding the … returns to an increase of the number of inventions when firms perceive patent protection to be strong. Thus, a higher number …