This paper develops a methodology for estimating demand systems, useful to calculate critical elasticities to be used in market delineation, and to simulate the unilateral effects of horizontal mergers. The whole method is based on the use of estimated long-run price elasticities, and it is...

This paper tries to quantify economically the importance of five phonetic haracteristics (seseo, yeismo, /s/-aspiration, rehilamiento, and /x/-aspiration) whose presence or absence allows to distinguish among ten regional varieties of Spanish. To do that we perform an analysis of the extension...

This paper develops a simplified prospective method to estimate expected price increases and reductions, associated with antitrust cases of collusion and abuse of dominance, in which it is not possible to compare real data under alternative competitive and anticompetitive situations. The...

This paper presents a model of the penalty-kick game between a soccer goalkeeper anda kicker, in which there is uncertainty about the kicker's type (and there are two possible types of kicker). To find a solution for this game we use the concept of Bayesian equilibrium, and we find that,...