affect firms' innovation strategy choices, concretely, whether to abstain from innovation, to introduce products that are … known in the market but new to the firm (imitation) or to introduce market novelties (innovation). Using a sample of 1253 … German firms from manufacturing and services sectors I show that the perceived effectiveness of patent protection positively …

supplemental information on IP litigation and patent portfolios. The rich survey information regarding firms’ general innovation …We contribute to the economic literature on patent litigation by taking a new perspective. In the past, scholars mostly … focused on specific litigation cases at the patent level and related technological characteristics to the event of litigation …

knowledge spillovers are unmeasurable, a 'goodness of fit' measure is constructed using innovation survey data. It turns out … measures constructed from innovation survey data appear to work reasonably well while measures of the Euclidean technological …

landscapes have a higher probability of in-licensing. For firms with small patent portfolios we also find a positive association … higher innovative performance for firms that do not in-license. Furthermore, the effects of fragmentation on innovation also … appear to depend on the size of a firm’s patent portfolio. These results suggest that the effects of fragmentation of …

patent quantity is driven by knowledge exchange rather than joint R&D. Firms engaged in joint R&D, on the other hand, receive … more forward citations per patent indicating that joint R&D enhances patent quality. In light of literature on strategic …&D Collaboration ; Knowledge Exchange ; Patents ; Innovation ; Count Data Models …

ownership fragmentation on investments related to innovation for firms with small patent portfolios. Hold-up threats are … between downstream firms and upstream patentees negatively affect investments in innovation for firms with large patent … residual physical investments. The effects of patent thickets on innovation are thus not uniform. They depend on the …

Classical patent literature assumes that patents grant well-defined legal rights to exclude others from practicing an … invention. In this scenario, start-up companies benefit from the exclusive right to commercialize patent-protected inventions … and the certification effect of patents which signals the ventures’ “quality” to investors. If the decision about patent …

innovation. While previous studies have often considered patents and trade secrets as substitutes for one another, we investigate … the complementary role of the two protection methods. We identify protection strategies for single innovation firms and … for the same innovation or for different innovations. Employing firm panel data from Germany, we find fairly few …

forward citations patents can receive at the European Patent Office. While a patent can be cited as non-infringing state of … the art, it can also be cited because it threatens the novelty of patent applications ("blocking citations"). Empirical …. This finding adds to the patent value literature by showing that different types of patent citations carry different …

This paper examines empirically the relationship between innovation and market structure within a simultaneous … concentration. In contrast, competition enforces innovation, i.e. sales concentration has a negative impact on R&D. …