Suchergebnisse

En Colombia, la Industria de Software y las Tecnologías de Comunicación son consideradas un sector de clase mundial que impulsa el crecimiento económico. Hasta el momento, esta industria ha pasado de un crecimiento moderado a una dinámica de crecimiento mayor gracias al fortalecimiento de sus capacidades. Este trabajo evalúa una combinación de políticas gubernamentales tales como la inversión en capacidades de innovación tecnológica: I+D, Mercadeo y Direccionamiento Estratégico. Para esto, se desarrolló un modelo de simulación con Dinámica de Sistemas que evaluó el efecto de las capacidades sobre las ventas por medio de análisis de escenarios. Se observó que la combinación de estas variables forman ciclos de realimentación positivos con el incremento de la inversión en las capacidades, aumentando el nivel de ventas. ; In Colombia, the Software Industry and Communication Technologies are considered a World –Class sector, and it is expected to be an economic booster. So far, this industry has performed from moderate to dynamic growth due to the strengthening of capabilities. This paper evaluates a number of combination of governmental policies such as investment in innovation capabilities as R&D, marketing and strategic management. We perform such evaluation using a System Dynamic Model through scenario analysis. We observe that a combination of such variables have positive feedback with the increase of investment level in the capabilities.

The energy matrix is a useful tool for understanding the trends of production and consumption in a country and for evaluating long-term energy policies. This paper presents a behavioral simulation model of the evolution of Chile's energy matrix. The model is developed and calibrated by considering a dynamic substitution of energy sources. Chile's stated policy is to become less dependent on imported fossil fuels, to increase security of supply and improve the environment. The simulation experiments show that the energy matrix is very robust with regards to external fuel prices and changes in investment cost. Thus, in order to be able to observe changes in the composition of the energy matrix, there is a need for strong intervention by the regulator, or the government, to provide incentives for renewables.

Colombian gold mining is a complex system characterized by interactions between individuals, organizations and other variables, which are involved in the system behavior. The gold mining system integrates the exploration, extraction, dressing and commercialization processes. There are exogenous issues that affect the system performance and its productivity, and increase the complexity. These issues are of social, environmental, political, economical, technological and organizational types. In order to analyze this complexity, we develop a system dynamics model that allows characterizing the system and evaluating policies to improve productivity of a Colombian gold mining process. We simulate different scenarios of the model in which we can observe that sustainable investment policies increase the productivity of the gold mining system in Colombia. Increases of social capital promotion activities and physical infrastructure in the region of influence affect positively the multifactorial productivity of the Colombian gold mining process. ; El sistema minero aurífero es un sistema complejo caracterizado por las interacciones entre individuos, organizaciones y otras variables que intervienen en su comportamiento. Tal sistema está integrado por los procesos de exploración, extracción, beneficio y comercialización. En el caso colombiano, factores exógenos de tipo social, ambiental, político, económico, tecnológico y organizacional intervienen en el desarrollo y la productividad de dichos procesos, agregándole una mayor complejidad al sistema. Para analizar tal complejidad, se desarrolla un modelo de dinámica de sistemas (DS) que permite la caracterización del sistema y la evaluación de políticas para el mejoramiento de la productividad de un proceso minero aurífero en Colombia. Se presentan simulaciones de diferentes escenarios, donde se observa que políticas de inversión sostenibles incrementan la productividad de dicho proceso. Finalmente, cambios positivos en las actividades generadoras de capital social y la infraestructura física de la región de influencia tienen un impacto positivo sobre la productividad multifactorial del proceso minero aurífero colombiano.

AbstractControlled experiments, long used in psychology and economics, are increasingly being used to develop theories in the areas of interest to management science, including decision making and systems. In this paper we review laboratory experiments relating to system dynamics. We discuss how these experiments help to (1) determine causes for subjects' poor performance in dynamic environments and (2) model such behaviour in system dynamics models. Finally, we present the main insights from the works reviewed and propose some ideas for a research agenda. Copyright © 2012 System Dynamics Society