This paper models the dynamic process through which a large society may succeed in building up its "social capital" by establishing a stable and dense pattern of interaction among its members. In the model, agents interact according to a collection of (idyosincratic) infinitely repeated...

This paper introduces expectations into the framework of evolutionary games. On the one hand, (myopic) players are assumed to behave optimally according to the expectations they hold at each point of the process. On the other hand, expectations themselves are continuously updated according to...

This paper analyses whether the impact of European shocks in the Spanisheconomy has increased after the entry of Spain in the European Community. UsingVAR models, we try to disentangle whether the change in the importance of Europe isdue to a change in the size of the shocks or in the...

In this paper we analyze firms' ability to tacitly collude on pricesin an infinitely repeated duopoly game of vertical productdifferentiation. We show that firms collude if and only if their discountfactor is high enough, i.e. if they value future profits sufficiently. We alsoshow that a lower...

Competition has long been regarded as productivity enhancing. Understanding the mechanism by which competition affects innovation and productivity is therefore an important topic for economic policy. The main contribution of this paper is to disentangle the relationship between competition and...

In this paper, we show that downstream mergers increase the incentives of an up-stream firm to invest in cost-reducing R&D. The upstream firm revenues increase with industry profits, which in turn increase with concentration downstream and this explains the positive link between concentration...

In the context of the recent electricity market reforms in Europe and the US, we evaluate the performance of the Spanish pool. Our method is not based on price-cost estimates but rather on the different behavior of operators with higher market power as compared to the behavior of more...

This paper analyses the evolution of competition in the Mexican banking system in the period 1993-2005, a period of deregulation, liberalization and consolidation of the sector. For this purpose we use two indicators of competition from the theory of industrial organization (the Lerner index and...

This paper analyses the intraday reaction of the Spanish market to annual earnings announcements. Specifically, we examine the levels of stock liquidity, trading activity, volatility, and asymmetric information, as well as the order placement strategy around earnings disclosures. We also analyse...

This paper analyses the determinants of interest margins of the banking firms.Our starting point is the methodology developed in the original study by Ho andSaunders (1981) and later extensions, but widened to take banks¿ operating costsexplicitly into account. In the developed model the...