Discrete time models are used in Ecology for describing the evolution of an agestructured population. Usually, they are considered from a deterministic viewpoint but, in practice, this is not very realistic. The statistical model we propose in this article is a reasonable model for the case in...

From the irruption of Internet, companies have undertaken a career for obtaining a position in the electronic business. However, this investment is being accomplishing without having a clear feedback of the profitability that the use of these technologies reports. This work analyzes in which...

From the irruption of Internet, companies have undertaken a career for obtaining a position in the electronic business. However, this investment is being accomplishing without having a clear feedback of the profitability that the use of these technologies reports. This work analyzes in which...

In recent years, the outsourcing strategy, in its two dimensions (national and international) is being a common practice in companies from developed countries, mainly in traditional manufacturing industries. In this paper we analyze the evolution of the strategy in these sectors over 1985-2004...

In recent years, the outsourcing strategy, in its two dimensions (national and international) is being a common practice in companies from developed countries, mainly in traditional manufacturing industries. In this paper we analyze the evolution of the strategy in these sectors over 1985-2004...

The limiting behavior of the hazard rate of coherent systems based on sequential order statistics is examined. Related results for the survival function of the system lifetime are also considered. For deriving the results, properties of limits involving a relevation transform are studied in...

From the irruption of Internet, companies have undertaken a career for obtaining a position in the electronic business. However, this investment is being accomplishing without having a clear feedback of the profitability that the use of these technologies reports. This work analyzes in which...

Desde la irrupción de Internet, las empresas han emprendido una carrera para posicionarse en el negocio electrónico. Sin embargo, esta inversión se está realizando sin tener una realimentación clara de la rentabilidad que el uso de estas tecnologías les reporta. Este trabajo analiza en que...