The Environmental Kuznets Curve (EKC) is a hypothesis which implies that it is possible to "grow out of environmental degradation." Most theoretical models of the EKC relation have not accounted for transboundary and intergenerational externalities, nor have empirical studies provided evidence...

In this paper we propose a new method to estimate nonparametrically a time varying parameter model when some qualitative information from outside data (e.g. seasonality) is available. In this framework we make two main contributions. First, the resulting estimator is shown to belong to the class...

In this paper, whe show that the strategic choice of spatial price policy under duopoly crucially depends on the rules of price competition. Thisse and Vives (1988) show that spatial price discrimination is a dominant strategy when the mill pricing firm is the leader and the discriminatory firm...

In this work we study the effect of several covariates X on a censored response variable T with unknown probability distribution. A semiparametric model is proposed to consider situations where the functional form of the effect of one or more covariates is unknown. We provide its estimation...

Developmental monetary benefits of coast artificialisation projects are rarely confronted with the environmental benefits that its conservation may entail. As a consequence, policy-makers often face decision making processes in which monetary benefits have to be balanced with physical impacts...

El objetivo fundamental del presente estudio es analizar el impacto de la aplicación de las Tecnologías de la Información y Comunicación (TICs) como elemento didáctico de autoaprendizaje y facilitador motivacional en la docencia universitaria presencial. El trabajo empírico realizado...

Clasificación AMS: 62P20, 62-07.-- Una versión más reciente de este trabajo está publicada como Biltoki 2003.07.

Time series in many areas of application, and notably in the social sciences, are frequently incomplete. This is particularly annoying when we need to have complete data, for instance to compute indexes as a weighted average of values from a number of time series; whenever a single datum is...

[EN] Stewart (1994) presents a model of endogenous entry. In his article Stewart proposes the following topic for future research: "An important feature of the model is that entry would be inefficient from the producers' point of view, and therefore never occurs in equilibrium. But in practice...

Basándose en la literatura existente, en este trabajo se propone una metodología para el estudio gráfico y analítico del componente estacional en una serie temporal. El objetivo del análisis es determinar si el componente estacional responde a un comportamiento determinista o estocástico....