We demonstrate the possibility of shake-out of firms and emergence of inter-firmheterogeneity along the (socially optimal) dynamic equilibrium path of a competitive industry with freeentry and exit, even when there is no uncertainty and all firms are ex ante identical with perfectforesight....

This discussion paper led to a publication in <A href="http://onlinelibrary.wiley.com/doi/10.1111/j.1468-0297.2009.02334.x/abstract">'The Economic Journal'</A>, 120(549) 1319-44.<P>This paper considers a government auctioning off multiple licenses to firms who compete in a market after the auction. Firms have different costs, and cost efficiency is private information at the auction...</p></a>

We explore the characteristics of a capacity-then-price game for a duopoly market with product differentiation and stochastic demand. The analysis shows that a minimum threshold value for the level of vertical product differentiation exists, relative to horizontal product differentiation, for...

The search literature assumes that consumers know which firms sell products they are looking for, but are unaware of the particular variety and the prices at which each firm sells. In this paper, we consider the situation where consumers are uncertain whether a firm carries the product at all by...

Network shares and retail prices are not symmetric in the telecommunications market with multiple bottlenecks which give rise to new questions of access fee regulation. In this paper we consider a model with two types of asymmetry arising from different entry timing, i.e. a larger reputation for...

We study a stochastic dynamic game of process innovation in which firms can initiate and terminate R&D efforts and production at different times. We discern the impact of knowledge spillovers on the investments in existing markets, as well as on the likely structure of newly forming markets, for...

We present a continuous-time generalization of the seminal R&D model of d’Aspremont and Jacquemin (American Economic Review, Vol. 78, No. 5) to examine the trade-off between the benefits of allowing firms to cooperate in R&D and the corresponding increased potential for product market...

Two approaches can be distinguished with respect to modelling entrepreneurship: (i) the approachfocusing on the net development of the number of entrepreneurs in an equilibrium framework and (ii)the approach focusing on the entries and exits of entrepreneurs. In this paper we unify these...

This discussion paper resulted in a publication in the <I>Economic Journal</I> (2014). Volume 124, pages 887-916.<P> In the process of regulatory reform in the electric power industry, the mitigation of market power is one of the basic problems regulators have to deal with. We use experimental data to...</p></i>

Several surveys on intra-industry dynamics have recently reached the conclusion from a large body of evidence that Gibrat's Law does not hold, i.e., the main finding is that firm growth decreases with firm size. However, almost all of these studies have been based on manufacturing. In this paper...