An Open Source Based Data Warehouse Architecture to Support Decision Making in the Tourism Sector

In this paper an alternative Tourism oriented Data Warehousing architecture is proposed which makes use of the most recent free and open source technologies like Java, Postgresql and XML. Such architecture's aim will be to support the decision making process and giving an integrated view of the whole Tourism reality in an established context (local, regional, national, etc.) without requesting big investments for getting the necessary software.Tourism, Data warehousing architecture

Affiliated mutual funds and analyst optimism

Prior studies have shown that investment banking affiliations place pressure on analysts to produce optimistic recommendations on the investment bank’s stock-clients. Our analysis of a large sample of recommendations issued from 1995 through 2003 indicates that a mutual fund affiliation also affects analysts’ research. That is, analysts are likely to look favorably at stocks held by the affiliated mutual funds. Controlling for a variety of factors including the investment banking affiliation, we find that the greater the portfolio weight of a stock for the affiliated mutual funds, the more optimistic the analyst rating becomes when compared to the consensus. Reputation partly restrains the optimism of analyst recommendations. In fact, the presence of other institutional investors as shareholders of the recommended stocks curbs analyst optimism. Nevertheless, from 1999 through 2001, star analysts report the most optimism when they recommend stocks in the portfolios of affiliated mutual funds.Mutual funds ; Investment banking

Why do analysts continue to provide favorable coverage for seasoned stocks?

Research has documented that the first report an investment bank affiliated analyst issues on a newly listed stock tends to be favorable. Our analysis of 16,824 relationships between analyst teams and established listed companies during 1995-2003 indicates that analyst coverage decisions of seasoned stocks are influenced by their affiliations with investment banks and mutual funds. Controlling for market returns, stock characteristics, and a variety of performance indicators, we find analysts are more likely to issue favorable reports when the stock is held by affiliated mutual funds. The more invested by affiliated mutual funds, the more optimistic the analyst rating compared to the consensus.Mutual funds ; Financial institutions

Evidencias de Validez y Confiabilidad de la Escala de Envidia Disposicional en Muestras de Argentina

The emotional experience of envy goes through different cultures. However, few instruments have been developed for its measurement. Smith et al. (1999) proposed the Dispositional Envy Scale (DES), which has shown good validity properties, stability and internal consistency in psychometric studies conducted with U.S. and Brazilian samples. This research aimed at evaluating the psychometric properties of validity and reliability of the DES with samples of participants from Cordoba, Argentina, university students (n = 399) and adults from general population (n = 316). Furthermore, the Psychological Entitlement Scale and the Subjective Happiness Scale were applied. Analysis of exploratory and confirmatory factor structure provided evidence about the unidimensionality of the scale. Evidence of adequate internal consistency was obtained. Besides, envy was positively related to entitlement and it was negatively related to subjective happiness.La experiencia emocional de envidia atraviesa distintas culturas. No obstante, son escasos los instrumentos para su medición. Smith et al. (1999) propusieron la Dispositional Envy Scale, la cual ha evidenciado buenas propiedades de validez, estabilidad y consistencia interna en estudios psicométricos conducidos con muestras estadounidenses y brasileras. Esta investigación se propuso evaluar las propiedades psicométricas de validez y confiabilidad con muestras de participantes de Córdoba, Argentina, estudiantes universitarios (n = 399) y adultos de población general (n = 316). Asimismo, se aplicaron la Psychological Entitlement Scale y la Escala de Felicidad Subjetiva. Análisis de la estructura factorial exploratorios y confirmatorios ofrecieron evidencia sobre la unidimensionalidad de la escala. Se obtuvo evidencia de adecuada consistencia interna. Además, la envidia se relacionó de manera positiva con el derecho psicológico y negativa con la felicidad subjetiva.Fil: Mola, Débora Jeanette. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Psicología. Laboratorio de Psicología Cognitiva; ArgentinaFil: Saavedra, Bianca Analia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Reyna, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Psicología. Laboratorio de Psicología Cognitiva; Argentin