Encontrado(s) 45939 resultado(s)
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Temptation, self-control, and competitive nonlinear pricing

  • Esteban, Susanna
  • Miyagawa, Eiichi
Standard pricing theories consider consumers without temptation. With temptation and costly self-control, consumers dislike choice sets with tempting alternatives. We study firms' strategy against such consumers, using Gul–Pesendorfer preferences and a game where firms compete by offering menus., Publicado

Collusion with Capacity Constraints over the Business Cycle

  • Fabra, Natalia
This paper investigates the effect of capacity constraints on the sustainability of collusion in markets subject to cyclical demand fluctuations. In the absence of capacity constraints, Haltiwanger and Harrington (1991) [Haltiwanger, J., Harrington, J., 1991. The impact of cyclical demand movements on collusive behavior. Rand Journal of Economics. 22, 89–106.] show that firms find it more difficult to collude during periods of decreasing demand. We find that this prediction can be overturned if firms' capacities are sufficiently small. Capacity constraints imply that punishment profits move procyclically, so that periods of increasing demand may lead to lower losses from cheating even if collusive profits are rising. Haltiwanger and Harrington's main prediction remains valid for sufficiently large capacities., Publicado

An economic model of scientific rules

  • Ferreira, José Luis
  • Zamora-Bonilla, Jesús
Empirical reports on scientific competition show that scientists can be depicted as self-interested, strategically behaving agents. Nevertheless, we argue that recognition-seeking scientists will have an interest in establishing methodological norms which tend to select theories of a high epistemic value, and that these norms will be still more stringent if the epistemic value of theories appears in the utility function of scientists, either directly or instrumentally., The authors gratefully acknowledges financial support from DGI grant BEC2002-03715 (Ministerio de Educación y Cultura), PB98-0495-C08-01 and BFF2002-03656 (Ministerio de Educación y Cultura)., Publicado

On the Sub-Optimality of Entry Fees in Auctions with Entry

  • Hernando-Veciana, Ángel
The original publication is available at www.springerlink.com, We study a variation of Myerson’s (1981) model in which we allow for uncertainty about the number of bidders. In our set-up, an appropriate reserve price in a standard auction maximizes the auctioneer’s expected revenue. However, entry fees can be optimal only under some special conditions. Basically, theremust be some homogeneity in bidders’ beliefs about the number of bidders and the auctioneer must know, to some extent, these beliefs., Publicado

A theoretical model of nations, regions and fiscal integration

  • Ortuño, Ignacio
  • Sempere, J.
This paper analyzes how the incentives of regions differ from those of nations when choosing a supranational fiscal arrangement. Two types of fiscal arrangements are studied: a Union of nations and a Federation of nations. Under the Union, there is full fiscal integration, and under the Federation, there is only partial fiscal integration and partial insurance against local risks. We show that the claim that regions have stronger incentives than nations to form a supranational Union rather than a Federation might be true only in the case where regions have strong incentives to be part of a centralized nation., Ortuno-Ortin gratefully acknowledges financial support from Spanish Ministry of Science and Technology, Project SEJ2004-00968, Fundacion BBVA-3-04x and CAM 06/HSE/0157/2004, Publicado

Los recursos intangibles corporativos [book review]

  • Beceiro Ribela, María Sagrario
Este artículo reseña: Villafañe, Justo (Dir.). La comunicación empresarial y la gestión de los intangibles en España y Latinoamérica. 2005 Informe anual. Madrid: Pirámide, 2005

Medio ambiente, manipulación política y control mediático del riesgo. Análisis del caso del hundimiento del petrolero Prestige

  • Elías Pérez, Carlos José
El hundimiento del petrolero Prestige en las costas gallegas en 2002 ha sido uno de los peores episodios de contaminación medioambiental en España, junto con Doñana. Pero el caso Prestige también es importante desde el punto de vista mediático y científico porque ha sido la primera vez en la historia de la ciencia española en la que los científicos se unieron para luchar contra el control político del conocimiento y solicitaron auxilio a través de la revista Science.Es un caso muy interesante de la unión de intereses políticos, riesgo medioambiental y control del conocimiento científico a través de los medios de comunicación. Resulta muy complejo comparar todo esto y, por ello, en este artículo se ha tratado de realizar un análisis de contenido y dar una versión de los hechos desde el punto de vista del conflicto ciencia-medios de comunicación-control político. En primer lugar, se hará una cronología de los hechos, porque puede que el caso ya quede lejano. Después, se analizará la estrategia mediática y los efectos tanto políticos como científicos que tuvo., The oil tanker Prestige sank off the northwest coast of Spain with almost 80,000 tons oil in 2002. This has been not only of the worst episodes of environmental contamination in Spain (with Doñana) but also is important because has been the first time that in the Spanish history of science scientists joined to fight against the political control of the knowledge. Even they requested their protest in journal Science. So Prestige it is a very interesting case in which political interests, environmental risk and scientific knowledge are in competition. Results will very complicated to compare. Because of that, in this article we try to carry out a content analysis and give an explanation of the facts since the point of view of political control versus mass media and science conflicts. First of all we show a chronology, because maybe not many people remember the case. Secondly we describe the media strategy and after that will be analyzed it in order to find its political and scientific effects.

Influencia de los medios de comunicación en la elección ciencias-letras en bachillerato y universidad. El caso español: análisis del periodo 1988-2001, The Influence of Mass Media in the Student´s Choice of Scientific Subjects. Analysis of Spanish Database (1988-2001) from A-Levels to University Career

  • Elías Pérez, Carlos José
Todos los expertos señalan que existe una crisis de vocaciones científicas en el mundo occidental. En este estudio se intenta relacionar ese fenómeno con la imagen que los medios de comunicación (cine, prensa y televisión) dan sobre la ciencia y los científicos. Para analizar si existe esa crisis se parte de los datos de matrícula en la secundaria y en la universidad desde el curso 1988/89 hasta el 2000/2001 se compara con noticias de esas épocas. Como conclusión final de este trabajo puede señalarse que los medios de comunicación ofrecen un enfoque negativo del mundo científico. Tanto desde el punto de vista de la imagen, sobre todo el cine y la televisión, como de las salidas profesionales (básicamente la prensa). Obviamente, los medios no son determinantes a la hora de elegir las opciones profesionales, pero todos los estudios que enmarcan la teoría de la comunicación indican que son grandes condicionantes de actitudes. Tal vez esta crisis de vocaciones se deba a un efecto conjunto de disminución del impacto cultural de la ciencia. También podemos concluir que existe una relación entre elegir ciencias en la universidad y lo que se lee de la profesión en la prensa., So many experts consider that really exists a strong scientific careers crisis in western countries. In this study we try to analyze this phenomenon since the point of view of the scientist image in the mass media (movies, press and television). For do it we use the data registration in the Spanish secondary schools and universities since academic year 1988/89 to 2000/2001 and we compared with different news . As a conclusion of this analysis can be indicated that the mass media offer a negative approach to the scientific world. Obviously, mass media are not determinants at the moment of choosing professional options, but all studies in communication theory shows that exists a strong relationships between what we think and what we hear/read/watch in mass media about the world. Perhaps the scientific careers crisis will be only a collateral effect in the decline of science cultural impact at the present times. As a conclusion we could prove there is a relationships between student registration in science/literacy and the problems about sciences careers they can read in newspapers.

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