We study the determinants of the diffusion of mobile telecommunications services in the European Union in a logistic model of technology diffusion. We find that the transition from the analogue to the digital technology during the early nineties, and the corresponding increase in spectrum...

We measure the impact of a drastic new technology for producing steel, the minimill, on the aggregate productivity of U.S. steel producers, using unique plant-level data between 1963 and 2002. We find that the sharp increase in the industry's productivity is linked to this new technology, and...

Exit of venture-backed firms often takes place through sales to large incumbent firms. We show that in such an environment, venture-backed firms have a stronger incentive to develop basic innovations into commercialized innovations than incumbent firms, due to strategic product market effects....

R&D alliances (Research Joint Ventures or other institutional forms) normally involve repeated, non-contractible actions (investments in R&D), and uncertainty regarding both success and the termination date. Accordingly, we model these agreements as equilibria of infinite-period supergames. Our...

The purpose of this paper is to try to shed some new light on the current industrial policy crisis. This paper proposes that the industrial policy debate is shaped by knowledge about the functioning of the underlying industrial structure, which in turn is the Gegenstand of scholars in the field...

When will a monopolist have incentives to foreclose a complementary market by degrading compatibility/interoperability of his products with those of rivals? We develop a framework where leveraging extracts more rents from the monopoly market by 'restoring' second degree price discrimination. In...

R&D is an inherently dynamic process which involves different intermediate steps that need to be developed before the completion of the final invention. Firms are not necessarily symmetric in their R&D abilities; some may have advantages in early stages of the R&D process while others may have...

This paper studies optimal dynamic tax policy under the threat of political reform. A policy will be reformed ex post if a large enough political coalition supports reform; thus, sustainable policies are those that will continue to attract enough political support in the future. We find that...