On the existence of pure strategy equilibria in large generalized games with atomic players

We consider a game with a continuum of players where only a finite number of them are atomic. Objective functions and admissible strategies may depend on the actions chosen by atomic players and on aggregate information about the actions chosen by non-atomic players. Only atomic players are required to have convex sets of admissible strategies and quasi-concave objective functions. We prove the existence of a pure strategy Nash equilibria. Thus, we extend to large generalized games with atomic players the results of equilibrium existence for non-atomic games of Schemeidler (1973) and Rath (1992). We do not obtain a pure strategy equilibrium by purification of mixed strategy equilibria. Thus, we have a direct proof of both Balder (1999, Theorem 2.1) and Balder (2002, Theorem 2.2.1), for the case where non-atomic players have a common non-empty set of strategies and integrable bounded codification of action profiles. Our main result is readily applicable to many interesting problems in general equilibrium. As an application, we extend Aumann (1966) result on the existence of equilibrium with a continuum of traders to a standard general equilibrium model with incomplete asset markets.Generalized games; Non-convexities; Pure-strategy Nash equilibrium

Sociedad del espectáculo y libertad de expresión

La libertad de expresión es el valor angular de la sociedad democrática. Dicho valor exige tanto una mayor oportunidad comunicativa para los colectivos más desfavorecidos como asegurar el derecho del público a disponer de una información suficiente sobre las actuaciones de los poderes públicos. Sin embargo, el espectáculo recicla la información en sus formas más espurias y produce un importante déficit en las exigencias éticas de un concepto crítico de la libertad de expresión.Freedom of expression is the angular value of democratic society. This value requires more communicative opportunities for minorities collective and also ensuring the citizen’s right to have adequate information about the political affairs. However, the society of spectacle recycles the information in its most spurious performances and produces a significant shortfall in the ethical demands of a critical concept of freedom of expression

Ethical and deontological aspects of online journalism. Their perception by journalists

Los periodistas digitales de tres países de la UE (Bélgica, España e Italia) mantienen que el ejercicio ético del periodismo depende tanto de los valores personales y profesionales del periodista como de factores externos: empresariales, económicos, políticos y tecnológico. La ética, por tanto, se ve afectada por las condiciones de trabajos, así como con la tecnología con los que se desarrolla la actividad profesional. No obstante, el grado de independencia del medio en el que se trabaja y los valores del profesional de la información son percibidos como los más influyentes, mientras que la interacción con los públicos y la respuesta, u opinión de éstos se sitúa en un segundo plano.Digital journalists from three countries (Belgium, Spain and Italy) argue that the ethical exercise of journalism depends on the personal and professional values of journalists as well as on external factors (of commercial, economic, political and technological nature). Journalism ethics is, thus, influenced by the working conditions as well as the technology used to carry out the professional activity. However, the degree of independence of the media companies where journalists work, and their personal values are perceived as the most influential factors in the ethical practice of journalism, while the influence of the interaction with the public and its opinions are considered as secondary