In recent years, firms have increasingly contributed to and been confronted with a patent landscape characterized by … numerous but marginal inventions, overlapping claims and patent fences. Literature suggests that both the fragmentation of … ownership and the threat of a firm's patent applications being blocked by competitors' patents lead to increased patenting and …

. The second chapter provides a theory of offshoring under imitation risk that explains optimal dynamic adjustments of firms …' successful patent applications. The last chapter describes sector-level input-output relationships in eleven European economies …

challenger invests more into R&D in order to enter a new market than the incumbent. Thus, the patent racing model by Reinganum …

model provides an argument that shorter product cycles can induce firms to file more patent applications. The firms may be … trapped in a prisoners' dilemma where all firms would jointly prefer to patent less and to not have a patent thicket. If firms … successful, this may create a patent thicket. The transition into a situation where firms start patenting many ideas instead of …

the negative disclosure effect may overcompensate the positive protective effect of a patent.In this case the inventor … prefers secrecy. Welfare considerations show that a patent may be socially desirable even though it delays the first adoption …

Halbleiterindustrie. Zusätzlich berücksichtigen wir explizit die Dynamik über den Produktlebenszyklus. Unsere Ergebnisse zeigen, daß diese … zeigen, daß (ii) Lerneffekte, Skalenerträge und Spillovereffekte über den Produktlebenszyklus variieren. Lerneffekte sind am … Ende des Produktlebenszyklus größer, wenn neue Produkttechnologien entwickelt werden. Skalenerträge sind zunehmend und …