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 uses a least-square regression method that relates per-capita income to four phonetic characteristics (r-dropping, and the so-called "father-bother", "cotcaught" and "pin-pen" mergers), to study the socio-economic significance of those characteristics in North American English. As a...

This paper is about a model of Bertrand competition in a homogeneous-good market with free entry of identical firms and variable returns to scale. If the optimum number of active firms in the market is two or more, and the number of active firms is equal to that optimum number, then Bertrand...

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 is about a model of Bertrand competition in a homogeneous-good market with free entry of identical firms and variable returns to scale. If the optimum number of active firms in the market is two or more, Bertrand equilibrium always exists for that optimum number, and it does not exist...