Patents act as an incentive to innovate. However, as this paper argues, patents can discourage some innovators from innovating, reducing knowledge spillovers. The combined result of the above suggests a concave relationship between patent protection and output growth.

Patents act as an incentive to innovate. However, as this paper argues, patents can lead the patent holder to rest on his laurels and at the same time discourage some innovators from innovating, reducing knowledge spillovers. The combined result of the above suggests an inverse U relationship...

The theoretical discussion concerning the question whether the incumbent or the (potential) entrant invests more into R&D has attracted considerable interest. This paper reports the results of an empirical study on this question using data of about 3500 German firms over the years 1992 to 1995....

In aggregative games, each playerʼs payoff depends on her own actions and an aggregate of the actions of all the players. Many common games in industrial organization, political economy, public economics, and macroeconomics can be cast as aggregative games. This paper provides a general and...

We study all-pay auctions with budget-constrained bidders who have access to fair insurance before bidding simultaneously over a prize. We characterize a unique equilibrium for the special cases of two bidders and one prize, show existence and a heuristic for finding an equilibrium in the case...