3,463 research outputs found
Comparative Statics, English Auctions, and the Stolper-Samuelson Theorem
No full textChanges in the parameters of an -dimensional system of equations induce changes in its solutions. For a class of such systems, we determine the qualitative change in solutions given certain qualitative changes in parameters. Our methods and results are elementary yet useful. They highlight the existence of a common thread, our ``own effect'' assumption, in formally diverse areas of economics. We discuss several applications; among them, we establish the existence of efficient equilibria in English auctions with interdependent valuations, and a version of the Stolper-Samuelson Theorem for an trade model.effficient auctions, international trade theory, implicit function theorem
The blind spots of secularization
No full textAccording to several international surveys Spain is among the western countries with the most negative views of Jews. While quantitative data on the topic accumulates, there is a significant lack of interpretative approaches that might explain the particular Spanish case. This paper presents the background, methodology and major results of a discussion group-based study on antisemitism, which was conducted in Spain in the autumn of 2009. The study identifies and locates in different socio-economic and ideological milieus the range of stereotypical discourses on Jews, Judaism and the Arab–Israeli conflict in Spain. Analysis of the group meetings shows that, despite growing secularization in Spanish society, the central explanatory variable for persisting and resurging antisemitism in this country is still religion in a broad cultural sense.N
El comportamiento del ternero en la guachera : Observar y no solo mirar
No full textLos animales se comunican entre sí naturalmente, a través de diferentes maneras: a través de sonidos, de movimientos o la falta de ellos y es esa comunicación la que les permite generar vínculos que desde pequeños los ayudan a conseguir alimento y protección, asegurando su propia supervivencia. Por otro lado, la constante modificación en los sistemas de producción hace que las condiciones naturales se vean continuamente alteradas y es la intensificación en la producción animal la causa más importante de modificación de su medio ambiente natural.EEA Manfredi. AER San Francisco.Fil: Manelli, Daniel. Asesor privado; ArgentinaFil: Centeno, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural San Francisco; Argentin
Métricas de autor Alejandro Gómez Jaramillo
No full textInforme de las métricas de autor del Dr. Alejandro Gómez Jaramillo de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicacionesReport of the author metrics Alejandro Gómez Jaramillo of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c
Author response
No full textDetecting pathogens and mounting immune responses upon infection is crucial for animal health. However, these responses come at a high metabolic price (McKean and Lazzaro, 2011, Kominsky et al., 2010), and avoiding pathogens before infection may be advantageous. The bacterial endotoxins lipopolysaccharides (LPS) are important immune system infection cues (Abbas et al., 2014), but it remains unknown whether animals possess sensory mechanisms to detect them prior to infection. Here we show that Drosophila melanogaster display strong aversive responses to LPS and that gustatory neurons expressing Gr66a bitter receptors mediate avoidance of LPS in feeding and egg laying assays. We found the expression of the chemosensory cation channel dTRPA1 in these cells to be necessary and sufficient for LPS avoidance. Furthermore, LPS stimulates Drosophila neurons in a TRPA1-dependent manner and activates exogenous dTRPA1 channels in human cells. Our findings demonstrate that flies detect bacterial endotoxins via a gustatory pathway through TRPA1 activation as conserved molecular mechanism.sponsorship: Vlaams Instituut voor Biotechnologie Alessia Soldano Luis Franco Guangda Liu Natalia Mora Emre Yaksi Bassem A Hassanr Fonds Wetenschappelijk Onderzoek G.0702.12 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0077.15 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0680.10 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0681.10 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0503.12 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0654.15 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0761.10N Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0596.12 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar Fonds Wetenschappelijk Onderzoek G.0565.07 Alessia Soldano Yeranddy A Alpizar Brett Boonen Alejandro Lopez-Requena Natalia Mora Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar KU Leuven GOA/14/011 Alessia Soldano Yeranddy A Alpizar Brett Boonen Luis Franco Alejandro Lopez-Requena Guangda Liu Natalia Mora Emre Yaksi Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar European Commission IUAP P7/13 Alessia Soldano Yeranddy A Alpizar Brett Boonen Luis Franco Alejandro Lopez-Requena Guangda Liu Natalia Mora Emre Yaksi Thomas Voets Rudi Vennekensr KU Leuven OT/12/091 Alessia Soldano Yeranddy A Alpizar Brett Boonen Luis Franco Alejandro Lopez-Requena Guangda Liu Natalia Mora Emre Yaksi Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talaverar KU Leuven PF-TRPLe Alessia Soldano Yeranddy A Alpizar Brett Boonen Luis Franco Alejandro Lopez-Requena Guangda Liu Natalia Mora Emre Yaksi Thomas Voets Rudi Vennekens Bassem A Hassan Karel Talavera (Vlaams Instituut voor Biotechnologie, Fonds Wetenschappelijk Onderzoek|G.0702.12, Fonds Wetenschappelijk Onderzoek|G.0077.15, Fonds Wetenschappelijk Onderzoek|G.0680.10, Fonds Wetenschappelijk Onderzoek|G.0681.10, Fonds Wetenschappelijk Onderzoek|G.0503.12, Fonds Wetenschappelijk Onderzoek|G.0654.15, Fonds Wetenschappelijk Onderzoek|G.0761.10N, Fonds Wetenschappelijk Onderzoek|G.0596.12, KU Leuven|GOA/14/011, KU Leuven|OT/12/091, European Commission|IUAP P7/13, KU Leuven PF-TRPLe)status: Publishe
Alma, impulso y movimiento según Alejandro de Afrodisia
No full textthis paper discusses Alexander of Aphrodisias’ conception of the soul, paying special attention to a specific aspect distinguishing the Alexandrian view from the Aristotelian one: the impulsive capacity or faculty. Firstly, it considers Alexander’s reformulation of Aristotle’s approach to the soul (as a form of the body), a reformulation that is performed in connection with his original reconstruction of hilemorphism. At this point the author makes a special emphasis upon the manner Alexander develops a ‘terraced model’ of hilemorphic composition. Secondly, the treatment of impulsive faculty, with a special focus on the theoretical performance that Alexander derives from taking the notion of impulse, is developed. Finally, Alexander’s reformulation of the Aristotelian psychology of action is also brie y considered in order to account for the sequence of the process of the production of voluntary movement and of action. This is an explicative model that leaves aside the Aristotelian resource to the structure of the practical syllogism, and incorporates the elements predominantly characteristic of the Stoic conception. This, though, does not entail the abandonment of the basic thesis of Aristotle’s stance regarding motivation, as an opposition to socratic intellectualism: the thesis of the primacy of desire, in all its possible ways, as a factor accounting for the origin of voluntary movement and action.Este artículo se ocupa de la concepción del alma elaborada por Alejandro de Afrodisia, con especial atención a un aspecto específico que la distingue de la concepción aristotélica: la introducción de una facultad o capacidad impulsiva. En primer lugar, se considera la reformulación de la concepción jaristotélica del alma como forma del cuerpo que Alejandro lleva a cabo, en conexión con su original reconstrucción del hilemorfismo. Aquí se pone especial énfasis en el modo en el cual Alejandro construye lo que puede llamarse un “modelo escalonado” de composición hilemórfica. En segundo lugar, se considera el tratamiento de la facultad impulsiva, atendiendo especialmente al rendimiento teórico que extrae Alejandro de la adopción de la noción de impulso. Por último, se considera brevemente el modelo reformulado de psicología de la acción que elabora Alejandro, para dar cuenta de la secuencia del proceso de producción del movimiento voluntario y la acción. Se trata de un modelo explicativo que deja de lado el recurso aristotélico a la estructura del silogismo práctico e incorpora, en cambio, los elementos más característicos de la concepción estoica. Ello no implica, sin embargo, el abandono de la tesis básica de la concepción aristotélica de la motivación, por oposición al intelectualismo socrático, a saber: la tesis de la primacía del deseo, en todas sus posibles formas, como factor que da cuenta del origen del movimiento voluntario y la acción
Author-level metrics. Technical Manual. 2.0 Version
No full textBecerril-García, Arianna, Aguado-López, Eduardo, & Macedo-García, Alejandro. (2023). Author-level metrics. Technical Manual. Zenodo. https://doi.org/10.5281/zenodo.79165
Cheap Talk and Sequential Equilibria in Signaling Games.
No full textWell-behaved infinite signaling games may have no sequential equilibria. The author proves that adding cheap talk to these games 'solves' the nonexistence problem: the limit of sequential equilibrium outcomes of finite approximating games is a sequential equilibrium outcome of the cheap-talk extension of the limit game. In addition, when the signaling space has no isolated points, any cheap-talk sequential equilibrium outcome can be approximated by a sequential [epsilon]-equilibrium of the game without cheap talk. Copyright 1996 by The Econometric Society.
share auctions with linear demands
No full textabstract: Buyers have private information on auctioning divisible goods. Linearity could be a useful property on measuring their marginal utility on those goods or on their bidding strategies under such a share auction environment. This paper establishes an auction model with independent private-values paradigm (IPVP) where bidders have linear demand. A mechanism design approach is applied to explore the optimal share auction in this model. I discuss the most popular auction formats in practice, including Vickrey auction (VA), uniform-price auction (UPA) and discriminatory price auction (DPA). The ex-post equilibriums on explicit solutions are achieved. I found VA does not generally constitute an optimal mechanism as expected even in a symmetric scenario. Furthermore, I rank the different auction formats in terms of revenue and social efficiency. The more private information bidders keep, the lower revenue VA generates to seller, and it could be even inferior to UPA or DPA. My study aggregates dispersed private information with linearity and is robust to distributional assumption.Dissertation/ThesisPh.D. Economics 201
Cómo vamos a vivir juntos?
No full textThis book by Alejandro Aravena explores the critical question of coexistence in modern societies, particularly in the context of urban planning, social participation, and the collective challenges we face in the 21st century. The book originates from a keynote speech given by the author at the Chilean Constitutional Convention in 2021, where he reflected on the future of society and urban development over the next century.
Drawing from his extensive experience in architecture and participatory design, Aravena presents key lessons learned through real-world projects and community engagement. These principles emphasise the importance of inclusive urban planning, equitable resource distribution, and the balance between regulation and self-regulation. The book argues that solving complex social issues requires more than just good intentions. It demands a deep understanding of diverse perspectives and a willingness to embrace dialogue and collaboration.
A central theme is the idea that neither the market nor the state alone can provide sustainable solutions for urban and social challenges. Instead, the book advocates for a "third way" that trusts in people's agency, acknowledging their role as active contributors to the built environment rather than passive recipients of top-down policies. The text highlights the need to shift from mere tolerance to genuine admiration for cultural diversity, particularly in the context of the Chilean-Mapuche relationship. To this aim, the author explores the potential of indigenous knowledge, historical negotiation practices, and the power of storytelling in shaping a shared future.
By blending architectural insight with sociopolitical analysis, this book serves as a manifesto for collective responsibility, urging readers to rethink how cities, policies, and communities can be designed to foster sustainable and harmonious living conditions
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