Using a comprehensive data set of Portuguese manufacturing firms, we show that the firm size distribution is significantly right-skewed, evolving over time toward a log-normal distribution. We also show that selection accounts for very little of this evolution. Instead, we propose a simple...

In this paper firm level data are used to test whether competition affects productivity performance in three transition countries, Hungary, Romania and Slovenia. The data are based on interviews taken in more than 300 state-owned, privatized and newly-established private firms between September...

We shed new light on the performance of Berry, Levinsohn and Pakes' (1995) GMM estimator of the aggregate random coefficient logit model. Based on an extensive Monte Carlo study, we show that the use of Chamberlain's (1987) optimal instruments overcomes most of the problems that have recently...

An important element of the cost of distance is time taken in delivering final and intermediate goods. We argue that time costs are qualitatively different from direct monetary costs such as freight charges. The difference arises because of uncertainty. Unsynchronized deliveries can disrupt...

The literature on new technology diffusion is vast, and it spills over many conventional disciplinary boundaries. This paper surveys this literature by focussing on alternative explanations of the dominant stylized fact in this are: namely, that the usage of new technologies over time typically...

We analyse the determinants of opposition to biotechnology and pharmaceutical patents granted by the European Patent Office between 1978–96. Opposition can be considered an early form of patent validity challenge suit. In our sample, 8.6% of the patents are attacked in opposition proceedings....

This Paper exploits the unique experiment of European market integration to investigate the relationship between integration and price convergence in international markets. Using a panel data set of car prices we examine how the process of integration has affected cross-country price dispersion...

We quantify the competitive effects of removing vertical restraints, based on the recent proposals to liberalize the selective and exclusive distribution system in the European car market. We estimate a differentiated products demand system for new cars and specify a model of oligopoly pricing...

This Paper analyses the impact of retail mergers on product variety. We show that a merging firm may want to enhance its buyer power vis a vis suppliers by delisting products and committing to a ‘single-sourcing’ purchasing strategy. Anticipating this, suppliers will strategically choose to...

In this Paper we analyse the effects of information leakage on the incentives to innovate in firms. We analyse a situation in which an employee in a firm is inspired with a new idea for a product. In a framework in which Intellectual Property Rights on ideas are absent, we analyse the...