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Esta tesis consiste en tres estudios experimentales que analizan cómo las personas toman decisiones en entornos estratégicos y por qué a menudo se desvían de las predicciones estándar de la teoría de juegos. El Capítulo 1 estudia si las desviaciones de las estrategias dominantes en los juegos del Dilema del Prisionero y de Bienes Públicos se deben a errores o a preferencias estables, encontrando que la mayoría de las desviaciones persisten incluso después de reconsiderarlas. El Capítulo 2 investiga las variaciones culturales en el comportamiento de negociación entre Estados Unidos y Japón mediante el juego del ultimátum, cuestionarios y escenarios reales, mostrando que las diferencias culturales dependen del contexto más que de tendencias generales. El Capítulo 3 utiliza un método de muestreo de experiencias durante una semana para estudiar cómo las emociones y contextos cotidianos afectan las decisiones en el juego del ultimátum, mostrando que las emociones positivas aumentan la generosidad y que el miedo reduce el umbral de aceptación.
(2025-12-19) Tosun, Elif (2026) Corbella, Joan M
International migration patterns south and north of the Mediterranean have more similarities than disparities. The Arab world and the EU27 share the critical challenge of integrating migrants to preserve social cohesion. The paper reviews the most salient features of migration at regional level: war induced population and refugee movements in the Mashreq; labor migrants’ economic centrality but civic exclusion in the Gulf States; blurred lines between transit migrants, foreign workers, and refugees in the Maghreb; need for replacement migration but rising xenophobia as paradoxical corollaries of aging in Europe. The paper concludes that the risk for migrants to feel closer to origin than destination societies, which is attributable to political failures, undermines social cohesion in destination countries where they live in reality.
(2026-01) Fargues, PhilippeBackground: Emergency Medical Services (EMS) plays a fundamental role in providing good quality healthcare services to citizens, as they are the first responders in distressing situations. Few studies have used available EMS data to investigate EMS call characteristics and subsequent responses. Methods: Data were extracted from the emergency registry for the period 2013' 2017. This included call and rescue vehicle dispatch information. All relationships in analyses and differences in events proportion between 2013 and 2017 were tested against the Pearson's Chi-Square with a 99% level of confidence. Results: Among the 2,120,838 emergency calls, operators dispatched at least one rescue vehicle for 1,494,855. There was an estimated overall incidence of 96 emergency calls and 75 rescue vehicles dispatched per 1000 inhabitants per year. Most calls were made by private citizens, during the daytime, and were made from home (63.8%); 31% of rescue vehicle dispatches were advanced emergency medical vehicles. The highest number of rescue vehicle dispatches ended at the emergency department (74.7%). Conclusions: Our data showed that, with some exception due to environmental differences, the highest proportion of incoming emergency calls is not acute or urgent and could be more effectively managed in other settings than in an Emergency Departments (ED). Better management of dispatch can reduce crowding and save hospital emergency departments time, personnel, and health system costs.
(2020) Campagna, Sara; Conti, Alessio; Dimonte, Valerio; Dalmasso, Marco; Starnini, Michele; Gianino, Maria Michaela; Borraccino, AlbertoPopulations of mobile agents'animal groups, robot swarms, or crowds of people'self-organize into a large diversity of states as a result of information exchanges with their surroundings. While in many situations of interest the motion of the agents is driven by the transmission of information from neighboring peers, previous modeling efforts have overlooked the feedback between motion and information spreading. Here we show that such a feedback results in contagion enhanced by flocking. We introduce a reference model in which agents carry an internal state whose dynamics is governed by the susceptible-infected-susceptible (SIS) epidemic process, characterizing the spread of information in the population and affecting the way they move in space. This feedback triggers flocking, which is able to foster social contagion by reducing the epidemic threshold with respect to the limit in which agents interact globally. The velocity of the agents controls both the epidemic threshold and the emergence of complex spatial structures, or swarms. By bridging together soft active matter physics and modeling of social dynamics, we shed light upon a positive feedback mechanism driving the self-organization of mobile agents in complex systems.
(2020) Levis, Demian; Diaz-Guilera, Albert; Pagonabarraga, Ignacio; Starnini, Michele