ODRŽIVOST KOLUZIJE PRI „STACKED REVERSION“

We consider a multi-period oligopoly model to analyze cartel sustainability where a subset of collusive firms is exogenously given. We assume that in case of cheating only the cheater is expelled from the cartel and collusion continues without the cheater. We show that, in our model, when firms compete in quantities and the cartel is sufficiently small, a Stackelberg leader cartel can always be sustained if firms are patient enough. Furthermore, in this case collusion is more easily sustained than when firms play grim trigger strategies. The opposite result is obtained in a price-setting supergame with differentiated products.Razmatramo multiperiodni model oligopola kako bismo analizirali održivost kartela u kojem je podskup koluzivnih tvrtki dan egzogeno. Pretpostavljamo da u slučaju prevare samo varalica biva izbačen iz kartela te se koluzija nastavlja bez prevaranta. Na našem modelu pokazujemo da kad tvrtke konkuriraju u količinama a kartel je dovoljno malen, Stackelberg leader kartel može uvijek biti održan ako su tvrtke dovoljno strpljive. Nadalje, u ovom slučaju, koluzija se jednostavnije održava nego kad tvrtke igraju „grim trigger“ strategije. Obrnuti se rezultat dobiva u cjenovnom nadigravanju s diferenciranim proizvodima

On Collusion and Industry Size

In this paper we investigate the connection between the number of competitors and the sustainability of collusion within the context of a infinitely repeated symmetric Cournot model where only a subset of firms cooperate. We show that, in our model, an increase in the number of cartel firms may increase collusion likelihood by diminishing the negative effects for collusion of the existence of a competitive fringe. Also, we show that an increase in the number of fringe firms makes collusion harder to sustain

ODRŽIVOST KOLUZIJE PRI „STACKED REVERSION“

We consider a multi-period oligopoly model to analyze cartel sustainability where a subset of collusive firms is exogenously given. We assume that in case of cheating only the cheater is expelled from the cartel and collusion continues without the cheater. We show that, in our model, when firms compete in quantities and the cartel is sufficiently small, a Stackelberg leader cartel can always be sustained if firms are patient enough. Furthermore, in this case collusion is more easily sustained than when firms play grim trigger strategies. The opposite result is obtained in a price-setting supergame with differentiated products.Razmatramo multiperiodni model oligopola kako bismo analizirali održivost kartela u kojem je podskup koluzivnih tvrtki dan egzogeno. Pretpostavljamo da u slučaju prevare samo varalica biva izbačen iz kartela te se koluzija nastavlja bez prevaranta. Na našem modelu pokazujemo da kad tvrtke konkuriraju u količinama a kartel je dovoljno malen, Stackelberg leader kartel može uvijek biti održan ako su tvrtke dovoljno strpljive. Nadalje, u ovom slučaju, koluzija se jednostavnije održava nego kad tvrtke igraju „grim trigger“ strategije. Obrnuti se rezultat dobiva u cjenovnom nadigravanju s diferenciranim proizvodima

Metodologías de enseñanza/aprendizaje y evaluación de la actividad docente en el marco del Espacio Europeo de Educación Superior (EEES)

El documento presente es fruto del trabajo y las experiencias que, en el ámbito de la innovación educativa, los autores vienen desarrollando y aplicando desde el año 2007 en las materias y asignaturas que imparten en la licenciatura de “Ciencia Política y de la Administración” y en la diplomatura de “Administración y Gestión Pública” de la Universidad Complutense de Madrid. Durante el curso 2008-2009, los autores dirigieron dos proyectos de innovación educativa que se proyectaron, el primero de ellos, sobre aspectos metodológicos y nuevas actividades de aprendizaje/enseñanza y, el segundo, sobre la evaluación de la metodología y de las actividades docentes desarrolladas, al efecto de verificar su impacto en los resultados académicos y en la satisfacción de los estudiantes. El trabajo presentado, que fue defendido presencialmente por los autores en un Congreso Internacional y que fue seleccionado para su exposición tras una evaluación anónima, realiza un inventario de los objetivos conseguidos, pero también plantea retos a abordar en un futuro

VENTAJAS Y BARRERAS EN LA CREACIÓN DEL SISTEMA DE INTELIGENCIA TURÍSTICA EN LOS DESTINOS TURÍSTICOS INTELIGENTES

This research work highlights the importance of implementing a Tourism Intelligence System in destinations and the results show its advantages (improvement in decision-making and the tourist's experience) and barriers (need for resources and resistance to change of agents). In-depth interviews were conducted with 15 Spanish and international experts. This study contributes to the advancement of tourism intelligence, guides its implementation and is a pioneer in its practical application to improve tourism management.Este trabajo destaca la importancia de implantar un Sistema de Inteligencia Turística en destinos y los resultados muestran sus ventajas (mejora en la toma de decisiones y la experiencia del turista) y barreas (necesidad de recursos y resistencia al cambio de los agentes). Para ello, se realizaron entrevistas en profundidad a 15 expertos de España e internacionales. Este estudio contribuye en el avance de la inteligencia turística, orienta su implantación y es pionero en su aplicación práctica para mejorar la gestión turística

Advantages and barriers to the creation of a tourism intelligence system in smart destinations

Este trabajo destaca la importancia de implantar un Sistema de Inteligencia Turística en destinos y los resultados muestran sus ventajas (mejora en la toma de decisiones y la experiencia del turista) y barreas (necesidad de recursos y resistencia al cambio de los agentes). Para ello, se realizaron entrevistas en profundidad a 15 expertos de España e internacionales. Este estudio contribuye en el avance de la inteligencia turística, orienta su implantación y es pionero en su aplicación práctica para mejorar la gestión turísticaThis research work highlights the importance of implementing a Tourism Intelligence System in destinations and the results show its advantages (improvement in decision-making and the tourist’s experience) and barriers (need for resources and resistance to change of agents). In-depth interviews were conducted with 15 Spanish and international experts. This study contributes to the advancement of tourism intelligence, guides its implementation and is a pioneer in its practical application to improve tourism managemen

Microorganism response to stressed terrestrial environments: a raman spectroscopic perspective of extremophilic life strategies

Raman spectroscopy is a valuable analytical technique for the identification of biomolecules and minerals in natural samples, which involves little or minimal sample manipulation. In this paper, we evaluate the advantages and disadvantages of this technique applied to the study of extremophiles. Furthermore, we provide a review of the results published, up to the present point in time, of the bio- and geo-strategies adopted by different types of extremophile colonies of microorganisms. We also show the characteristic Raman signatures for the identification of pigments and minerals, which appear in those complex sample