Julio César Alonso

Valor en riesgo: evaluación del desempeño de diferentes metodologías para 5 países latinoamericanos

Este documento evalua el comportamiento de veinte diferentes metodos (parametrico, no parametricos y semi-parametricos) para estimar el VaR (Valor en Riesgo) de un portafolio representativo para 5 paises latinoamericanos (Argentina, Brasil, Chile, Colombia y Peru). Despues de encontrar la aproximacion que mejor captura el nivel de riesgo seleccionado para cada portafolio, se encontro que los modelos no-parametricos de simulacion historica y semi-parametricos corresponde a la mejor medida de riesgo para todos los paises de la muestra.

Design awareness and purchase intention: an item response theory approach

Purpose The purpose of this paper is to evaluate the effect of design awareness on consumers’ purchase intention. Design/methodology/approach The experiment consisted of showing a new beer package design to 185 participants who evaluated it using a self‐administered questionnaire. Findings Using an Item Response Theory approach, results show that there are two dimensions of consumer design awareness: basic design and differential design. These findings are, to some extent, consistent with the theoretical discussion within design literature. Moreover, a multiple regression model estimates the effect of both dimensions on consumers’ purchase intention, and the paper concludes that both dimensions have a similar effect (p<0.05). The sign of the effects are consistent with the theoretical discussion. Practical implications The design of new products must consider attributes associated to the basic and practical use of a product as well as those attributes that mark a comparative difference in the product cate...

TEST: Serious games for radio communications learning

The game industry has suffered an impressive explosion of popularity, becoming the largest entertainment industry in the world. Games have become a sophisticated extension of the reality and an interesting way for complementing human mind utopias. Training software allows the trainee to immerse in quasi-real controlled situations that could be measured by trainers. In this work we discuss the duality existing between the training based on a serious game and a simple game, based on state of the art technologies. Then we show a training system for telecommunications technicians based on a combination between serious games and “traditional” e-learning platform. We show results for a trial made with a group of students from different disciplines (not only engineering) in order to evaluate learning outcomes using serious games versus other learning approaches. In this paper we discuss such results and make a descriptive statistical analysis of the results.

Students' Emotional Experience at the University: An Alternative Approach to Understanding Students as Consumers

ABSTRACT This study offers an alternative perspective to understand students as consumers. This proposition is evaluated by analyzing the relationship between students’ emotional experience at a university and their perception of loyalty to this institution. Students from a Latin-American business school responded to a survey that included the Consumption Emotion Set and a loyalty assessment (n = 1,393). Data was analyzed using Rasch models. The findings show that positive emotions motivate student loyalty, whereas negative emotions harm student loyalty. The students’ experiences should be conceptualized at the institution as a brand and addressed through services and (nonacademic) activities in students’ lives.

Consumer Confusion Choosing Me-Too Snack Packages: An Experimental Study

We hypothesize that (a) the presence of a leading brand next to a me-too brand and (b) the presence of the brand on the package prevents consumer confusion. This experimental design includes six categories of snacks (chocolate covered cake, waffle cookies, chocolate chip cookies, crackers, lollypops, and gummy candy); for each we estimate three logit models to determine the probability of (a) behavioral confusion, (b) cognitive confusion, and (c) overall confusion. Results support both hypotheses. Previous studies use cognitive rather than behavioral measures of confusion; we show that the three measures of confusion are complementary. Results yield important practical implications.

El problema de la consultoría está en la t

El objetivo de este caso es reforzar la capacidad del lector de aproximarse de forma sistemica a un problema que requiere el uso de herramientas econometricas, en especial la regresion multiple. Para ello, el problema se contextualiza en una empresa consultora que debe estimar una funcion de demanda y debe determinar que pruebas de hipotesis deben hacerse para los coeficientes del modelo de regresion lineal estimado. Esta discusion toca un tema que parece darse por sentado, pero que refleja la necesidad de reflexionar acerca de las razones por las cuales se hace uso de una prueba t individual de 2 colas o de 1 cola y la relacion con la teoria economica.

Elementos para la construcción de una política pública de bilingüismo en el Valle del Cauca: un análisis descriptivo a partir del censo ampliado de 2005

Los indices de competitividad reflejan un pobre desempeno del departamento del Valle del Cauca, especialmente en lo referente al capital humano. Una politica publica de bilinguismo permite acumular capital humano a traves de la educacion en ingles, acceder a nuevos mercados y mejor informacion, lo que hace posible el desarrollo de otros factores necesarios para la competitividad de una region. En este documento se hace un primer diagnostico del bilinguismo en el Valle del Cauca, con miras a brindar argumentos para la creacion de una eficaz politica publica de bilinguismo. Los datos procesados provienen del Censo ampliado de 2005, y los resultados obtenidos a partir de el no son alentadores, pues muestran la necesidad de convertir el bilinguismo en un tema de prioridad en la agenda publica.