Últimos itens adicionados do Acervo: Universidade Carlos III de Madrid

A Universidade Carlos III de Madrid foi fundada em 1989. É uma das seis universidades públicas da Comunidade de Madrid, em/na Espanha. Possui três campi: em Getafe, em Leganés e em Colmenarejo.

Página 11 dos resultados de 18811 itens digitais encontrados em 0.005 segundos

Market orientation intensity and business perfomance in the insurance sector

Lado, Nora; Martínez Martínez, Miguel Ángel
Fonte: Palgrave McMillan Publicador: Palgrave McMillan
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em //1997 Português
Market Orientation (MO) has taken a central role in discussions about strategic management and marketing (Day, 1992). And yet despite its importance, MO has been the subject of few theoretical and empirical studies (Kohli and Jaworski, 1990). The empirical study reported in this paper focuses on the relationship between the degree of market orientation and the business performance of insurance companies in Spain. The results of the study indicate that there is empirical support for the existence of a positive and significant relationship between a company's economic performance and its degree of market orientation. As well as providing additional evidence, the results here reported constitute empirical support for, and an extension of, the concept of market orientation as given in the literature.

Financial service firms' entry-mode choice and cultural diversity : Spanish companies in Latin America

Álvarez Gil, María José; Cardone Riportella, Clara; Samartín Sáenz, Margarita; Lado, Nora
Fonte: Emerald Publicador: Emerald
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em //2003 Português
Emerging markets in newly industrialised countries have caught the attention of managers of manufacturing companies facing heavy domestic and global pressure. Key barriers to the effective management of international manufacturing operations need to be identified. The same applies to the management of international service operations. The share of services in international trade, the amount of foreign direct investments made and the number of multinational service-sector enterprises has been increasing rapidly in the last two decades. Existing studies on service internationalisation apply a fairly broad theoretical base. This paper contributes by examining the internationalisation behaviour of Spanish financial service-sector companies in Latin America to find out if general internationalisation patterns are applicable or if the manufacturing sector influences their internationalisation behaviour

The measurement of low- and high-impact in citation distributions : technical results

Albarrán, Pedro; Ortuño, Ignacio; Ruiz-Castillo, Javier
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: Trabalho em Andamento Formato: text/plain; application/octet-stream; application/octet-stream; application/octet-stream; application/pdf
Publicado em /12/2009 Português
This paper introduces a novel methodology for comparing the citation distributions of research units working in the same homogeneous field. Given a critical citation level (CCL), we suggest using two real valued indicators to describe the shape of any distribution: a high-impact and a low-impact measure defined over the set of articles with citations above or below the CCL. The key to this methodology is the identification of a citation distribution with an income distribution. Once this step is taken, it is easy to realize that the measurement of low-impact coincides with the measurement of economic poverty. In turn, it is equally natural to identify the measurement of high-impact with the measurement of a certain notion of economic affluence. On the other hand, it is seen that the ranking of citation distributions according to a family of low-impact measures is essentially characterized by a number of desirable axioms. Appropriately redefined, these same axioms lead to the selection of an equally convenient class of decomposable high-impact measures. These two families are shown to satisfy other interesting properties that make them potentially useful in empirical applications, including the comparison of research units working in different fields.; European Community's Seventh Framework Program

Un ritual dionisíaco: Dionisíacas de Nono 9.111-131

García-Gasco Villarrubia, Rosa
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: Trabalho em Andamento Formato: application/pdf
Publicado em //2010 Português
El poema Dionisíacas de Nono de Panópolis, que aspira a compilar todos los mitos acerca de la vida de Dioniso, introduce una absoluta innovación al presentar, entre las nodrizas que cuidan del dios tras la muerte de su madre Sémele, a una mujer llamada Místide, sierva de Ino, la tía Baco. La intervención de Místide en los episodios de la vida del dios constituye un valioso testimonio para el estudio de la historia de las religiones, pues esta nodriza, junto con el dios niño, protagoniza una escena repleta de vocabulario mistérico y alusiones a la religiosidad órfica. Una clasificación cuidadosa de las menciones de diversa índole que acoge el texto, así como el estudio comparativo por medio de otras fuentes, principalmente órficas, permite alcanzar la primera conclusión acerca del carácter libresco del conocimiento que el poeta tiene del orfismo. Desde el nombre de situación creado ex professo para el personaje, que inicia y es iniciada, hasta el vestuario y los instrumentos musicales que aparecen en la escena, todos los elementos apuntan a una semejanza con la idea de la bacante grabada a fuego en la mentalidad colectiva gracias a Eurípides, más que a una pervivencia de ritos dionisíacos históricos en época de Nono.-------------------------------------------Nonnus’ Dionysiaca...

Employee discretion and performance pay

Ortega, Jaime
Fonte: American Accounting Association Publicador: American Accounting Association
Tipo: Artigo de Revista Científica
Publicado em /03/2009 Português
This study examines the relationship between performance pay and the decision to delegate the choice of work methods and scheduling. I compare two theoretical approaches, based on specific knowledge and measurement costs, respectively. Both perspectives suggest a complementarity between discretion and performance pay, but the former predicts a positive effect of job complexity on discretion and performance pay, and the latter implies a negative effect. Results suggest that group and firm-wide incentives are used to decentralize decisions and to take advantage of employees' specific knowledge, whereas piece rates are driven by performance measurement considerations and are not associated with more discretion.

Balance sheet versus earnings conservatism in Europe

García Lara, Juan Manuel; Mora, Araceli
Fonte: Taylor & Francis (Routledge) Publicador: Taylor & Francis (Routledge)
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em //2005 Português
In this study we extend prior research on the international analysis of accounting conservatism (Joos and Lang, 1994; Ball et al., 2000; Giner and Rees, 2001), by examining the level of accounting conservatism across eight European countries (United Kingdom, Germany, France, Switzerland, the Netherlands, Italy, Spain and Belgium), and assessing the statistical significance of the differences among them. The definitions of conservatism that we use are, on the one hand, the Feltham and Ohlson (1995) definition, which implies a persistent understatement of book value of shareholders' equity (balance sheet conservatism). On the other hand, we use the one proposed by Basu (1997), that is, a timelier recognition of bad news in earnings relative to good news (earnings conservatism). We also address the possible scale problems of the models used to measure balance sheet conservatism. Finally, we check whether our comparative results could be influenced by a different sample composition in each country. Our results show that there are both balance sheet and earnings conservatism practices in all countries under study. In addition, while continental countries show larger balance sheet conservatism, differences in earnings conservative practices between countries are not that pronounced...

Disclosure interactions and the cost of equity capital: evidence from the spanish continuous market

Trombetta, Marco; Espinosa, Mónica
Fonte: Wiley-Blackwell Publicador: Wiley-Blackwell
Tipo: Artigo de Revista Científica Formato: application/pdf; text/plain
Publicado em /12/2007 Português
The purpose of this paper is to provide some new evidence on the relationship between disclosure and the cost of equity capital. We propose a new specification for the empirical test based on the idea that in the previous models one crucial variable was missing: accounting policy choice. We test our theoretical hypothesis using a sample of Spanish firms quoted on the Spanish continuous market from 1999 to 2002. We adopt the ex-ante approach to measure the cost of equity capital, taking analysts predictions as a proxy for expected earnings. As an explanatory variable we use an index measuring annual report disclosure quality. This measure of disclosure is combined with a proxy for the accounting policy choice of the firm. We measure firms' conservatism using the modified Jones model of Dechow et al. (1995) to estimate discretionary accruals. Our results confirm that the relationship between disclosure and cost of capital is affected by the choice of accounting policy.

Modelling the fracture processes in the ballistic impact on ceramic armours

Zaera, Ramón; Sánchez-Gálvez, Vicente
Fonte: EDP Sciences Publicador: EDP Sciences
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em /08/1997 Português
[EN] This work examines the essential physical processes in the perforation of metal backed ceramic armours which include projectile erosion, fracture of the ceramic tile and ductile deformation of the metal backing plate. The impact of projectiles onto alumina and aluminium nitride ceramic materials is studied experimentally and numerically. Observations were performed using an X-ray shadowgraph technique to obtain accurate data of the penetration process at different times. From the examination of computer simulations and corresponding impact experiments a simple analytical model is developed by assuming some hypotheses simplifying the actual mechanisms of the penetration process. Material description is simplified by using simple equations and a few material parameters easily obtained experimentally, such as the elastic modulus, the compressive and tensile strength and the rupture strain.; [FR] Ce travail examine les procès physiques essentiels qui concernent la perforation des blindages céramique/métal en incluant dans un modèle analytique l'érosion du projectile, la fracture de la céramique et la déformation plastique de la plaque métallique. L'impact de projectiles sur des plaques d'oxide d'aluminium et de nitrure d'aluminium est étudié expérimentale et numériquement. Pour obtenir les donnés expérimentales un appareil photographique à rayons X a été utilisé...

Why do employers give discretion? Family versus performance concerns

Ortega, Jaime
Fonte: Wiley-Blackwell Publicador: Wiley-Blackwell
Tipo: Artigo de Revista Científica Formato: text/plain; application/pdf
Publicado em /01/2009 Português
Using a large data set of Western European employees, I examine two sets of reasons behind employers' decisions to give discretion: performance concerns (firms give discretion in order to improve performance) and family concerns (firms wish to improve the employees' work–family balance). I find more support for the former than for the latter. Discretion is positively related to the use of "high-performance" work practices and to employee position and ability, and is smaller in larger establishments, which suggests that loss of control matters to employers. Evidence about family concerns is less compelling. Female participation in the labor force has a positive effect on discretion over work schedules, but women have less discretion than men, and employees with small children do not have more discretion than other employees. Large and governmental organizations, which are expected to care more about work–family balance, do not offer more discretion over work schedules than other types of organizations.

The adoption of job rotation: testing the theories

Ortega, Jaime; Eriksson, Tor
Fonte: Cornell University Publicador: Cornell University
Tipo: Artigo de Revista Científica Formato: text/plain; application/pdf
Publicado em /07/2006 Português
This paper tests three possible explanations for why firms adopt job rotation: employee learning (rotation makes employees more versatile), employer learning (through rotation, employers learn more about individual workers' strengths), and employee motivation (rotation mitigates boredom). Whereas previous studies have examined either establishment characteristics or a single firm's personnel records, this study merges information from a detailed survey of Danish private sector firms with linked employer-employee panel data, allowing firm characteristics, work force characteristics, and firms' human resource management practices to be included as explanatory variables. The results reject the employee motivation hypothesis, but support the employee learning and, especially, the employer learning hypotheses. Firms allocating more resources to training were more likely to rotate workers; rotation schemes were more common in less hierarchical firms and in firms with shorter average employee tenure; and both firm growth rates and firms' use of nation-wide recruitment were positively associated with rotation schemes.

Performance evaluation considering the coskewness: a stochastic discount factor framework

Rodríguez López, Rosa; Moreno, David
Fonte: Emerald Publicador: Emerald
Tipo: Artigo de Revista Científica Formato: text/plain; application/pdf
Publicado em //2006 Português
Purpose – The paper aims to examine the performance of Spanish mutual funds between 1999 and 2003. Design/methodology/approach – The methodolgy uses the stochastic discount factor (SDF) framework across a variety of models developed in the recent asset pricing literature. This approach is a fairly recent innovation in the evaluation of investment performance. Findings – The present work complements the research of Farnworth et al. and Fletcher and Forbes, adding a new issue to the SDF, the third co-moment of asset returns. Recent asset pricing studies show the relevance of the component of an asset's skewness related to the market portfolio's skewness, the coskewness, and how it helps to explain the time-variation of ex-ante market risk premiums. It is found that the effects of adding coskewness to evaluate the performance is significant even when factors based on size, book-to-market and momentum are included. Practical implications – The omission of a coskewness factor may lead to erroneous evaluations of a fund's performance, and therefore, issues such as the persistence of performance should be revised. Originality/value – This paper explores, for the first time, the effects of incorporating a coskewness factor in the analysis of investment performance...

Using an analytical model of simulation in the design of light-weight armours

Zaera, Ramón; Sánchez-Gálvez, Vicente
Fonte: SAGE Publications Publicador: SAGE Publications
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em //1998 Português
This paper presents a model for the simulation of the impact of projectiles of high kinetic energy on lightweight ceramic/metal armours. The work was financed jointly by the Defence Ministries of Spain, Italy, Holland and Denmark as part of a project among nations for the development of tools for the design of this type of armour. The model consists of a series of differential equations incorporating the most essential phenomena of the impact process, formulated after a close study of a series of real fire tests. It features a nucleus of calculation into which the equations may in time be integrated, and may also include a user interface. This practical, preliminary design tool's efficacy is amply confirmed by test results.; The authors are indebted to the Research & Development Department of Empresa Nacional Santa Bárbara (Spain) for the performance of the ballistic tests and the X-ray shadowgraphs. This work is part of the EUCLID RTP 3.2 project, supported by the Ministries of Defence of Spain, Denmark, Holland and Italy. The above project has been developed with the collaboration of several companies and research centres of the aforementioned countries.; 9 pages, 13 figures.

On the optimality of bank runs: comment on Allen and Gale

Samartín Sáenz, Margarita
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica Formato: text/plain; application/pdf
Publicado em /06/2003 Português
This paper presents a model consistent with the business cycle view of the origins of banking panics. As in Allen and Gale (1998), bank runs arise endogenously as a consequence of the standard deposit contract in a world with aggregate uncertainty about asset returns. The purpose of the paper is to show that Allen and Gale's result about the optimality of bank runs depends on individuals's preferences. In a more general framework, considered in the present work, a laissez-faire policy can never be optimal, and therefore, regulation is always needed in order to achieve the first best. This result supports the traditional view that bank runs are costly and should be prevented with regulation.

Dependability issues with ubiquitous wireless access

Banchs, Albert; Qiao, Daji; Westhoff, DIrk
Fonte: IEEE Publicador: IEEE
Tipo: info:eu-repo/semantics/publishedVersion; info:eu-repo/semantics/article Formato: application/octet-stream; application/octet-stream; application/pdf
Publicado em //2008 Português
Recent years have witnessed a proliferation of the number of wireless technologies available to access the Internet, ranging from wireless local area networks to cellular and broadcast systems, and ad hoc and mesh networks. While the emergence of these new technologies can enable truly ubiquitous Internet access, it also raises issues with the dependability of the Internet service delivered to users. Dependability in this context refers to the ability of a wireless access system to deliver specified services on which users can rely.; European Community's Seventh Framework Program

On spatial dynamics

Desmet, Klaus; Rossi-Hansberg, Esteban
Fonte: Wiley-Blackwell Publicador: Wiley-Blackwell
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/article Formato: text/plain; application/octet-stream; application/octet-stream; application/octet-stream; application/pdf
Publicado em /02/2010 Português
It has long been recognized that the forces that lead to the agglomeration of economic activity and to aggregate growth are similar. Unfortunately, few formal frameworks have been advanced to explore this link. We critically discuss the literature and present a simple framework that can circumvent some of the main obstacles we identify.We discuss the main characteristics of an equilibrium allocation in this dynamic spatial framework, present a numerical example to illustrate the forces at work, and provide some supporting empirical evidence.; European Community's Seventh Framework Program

Bigger is better : market size, demand elasticity and innovation

Desmet, Klaus; Parente, Stephen L.
Fonte: Wiley-Blackwell Publicador: Wiley-Blackwell
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/article Formato: application/pdf; text/plain; application/octet-stream; application/octet-stream; application/octet-stream
Publicado em /05/2010 Português
This article proposes a novel mechanism whereby larger markets increase competition and facilitate process innovation. Larger markets, in the sense of more people or more open trade, support a larger variety of goods, resulting in a more crowded product space. This raises the price elasticity of demand and lowers markups. Firms, therefore, become larger to break even. This facilitates process innovation, as larger firms can amortize R&D costs over more goods. We demonstrate this mechanism in a standard model of process and product innovation. In doing so, we question some important results in the new trade and endogenous growth literatures; European Community's Seventh Framework Program

A human-like TORCS controller for the Simulated Car Racing Championship

Muñoz, Jorge; Gutiérrez, Germán; Sanchis, Araceli
Fonte: IEEE Publicador: IEEE
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/bookPart Formato: application/pdf
Publicado em //2010 Português
This paper presents a controller for the 2010 Simulated Car Racing Championship. The idea is not to create the fastest controller but a human-like controller. In order to achieve this, first we have created a process to build a model of the tracks while the car is running and then we used several neural networks which predict the trajectory the car should follow and the target speed. A scripted policy is used for the gear change and to follow the predicted trajectory with the predicted speed. The neural networks are trained with data retrieved from a human player, and are evaluated in a new track. The results shows an acceptable performance of the controller in unknown tracks, more than 20% slower than the human in the same tracks because of the mistakes made when the controller tries to follow the trajectory.; This work was supported in part by the University Carlos III of Madrid under grant PIF UC3M01-0809 and by the Ministry of Science and Innovation under project TRA2007- 67374-C02-02.; Proceeding of: IEEE Congres on Computational Intelligence and Games (CIG'10), Copenhagen (Denmark), 18-21, August, 2010.

The measurement of low- and high-impact in citation distributions : technical results

Albarrán, Pedro; Ortuño, Ignacio; Ruiz-Castillo, Javier
Fonte: Elsevier Publicador: Elsevier
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/article Formato: text/plain; application/octet-stream; application/pdf
Publicado em /01/2011 Português
This paper introduces a novel methodology for comparing the citation distributions of research units of a certain size working in the same homogeneous field. Given a critical citation level (CCL), we suggest using two real valued indicators to describe the shape of any distribution: a high-impact and a low-impact measure defined over the set of articles with citations above or below the CCL. The key to this methodology is the identification of a citation distribution with an income distribution. Once this step is taken, it is easy to realize that the measurement of low-impact coincides with the measurement of economic poverty. In turn, it is equally natural to identify the measurement of high-impact with the measurement of a certain notion of economic affluence. On the other hand, it is seen that the ranking of citation distributions according to a family of low-impact measures is essentially characterized by a number of desirable axioms. Appropriately redefined, these same axioms lead to the selection of an equally convenient class of decomposable high-impact measures. These two families are shown to satisfy other interesting properties that make them potentially useful in empirical applications, including the comparison of research units working in different fields; European Community's Seventh Framework Program

High- and low-impact citation measures : empirical applications

Albarrán, Pedro; Ortuño, Ignacio; Ruiz-Castillo, Javier
Fonte: Elsevier Publicador: Elsevier
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/article Formato: text/plain; application/octet-stream; application/pdf
Publicado em /01/2011 Português
This paper contains the first empirical applications of a novel methodology for comparing the citation distributions of research units working in the same homogeneous field. The paper considers a situation in which the world citation distribution in 22 scientific fields is partitioned into three geographical areas: the U.S., the European Union (EU), and the rest of the world (RW). Given a critical citation level (CCL), we suggest using two real valued indicators to describe the shape of each area’s distribution: a high- and a low-impact measure defined over the set of articles with citations below or above the CCL. It is found that, when the CCL is fixed at the 80th percentile of the world citation distribution, the U.S. performs dramatically better than the EU and the RW according to both indicators in all scientific fields. This superiority generally increases as we move from the incidence to the intensity and the citation inequality aspects of the phenomena in question. Surprisingly, changes observed when the CCL is increased from the 80th to the 95th percentile are of a relatively small order of magnitude. Finally, it is found that international co-authorship increases the high-impact and reduces the low-impact level in the three geographical areas. This is especially the case for the EU and the RW when they cooperate with the U.S.; European Community's Seventh Framework Program

Improving human development: a long-run view

Prados de la Escosura, Leandro
Fonte: Wiley-Blackwell Publicador: Wiley-Blackwell
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/article Formato: application/octet-stream; application/octet-stream; application/pdf
Publicado em /12/2010 Português
The pessimistic flavour of the Human Development Reports appears to be in contradiction with their own numbers as developing countries fare comparatively better in human development than in per capita GDP terms. This paper attempts to bridge this gap by providing a new, ‘improved’ human development index (IHDI), informed by welfare economics. The IHDI is presented here alongside the United Nations Development Programme’s (UNDP) HDI for the world and its main regions since the late 19th century. Social dimensions in the IHDI are derived, following Kakwani (Journal of Development Economics 41 (1993), pp. 307–336), with a convex achievement function, whereas a geometric average is employed to combine its dimensions (longevity, knowledge and income). Thus, the IHDI does not conceal the gap between rich and poor countries and casts a much less optimistic view than the conventional UNDP index, while it fits with the UNDP concern for international differences. The paper’s findings highlight main weaknesses in human development dimensions of present-day developing countries.; European Community's Seventh Framework Program