El valor de la cartera de clientes de empresas de telecomunicaciones en México (The value of customer portfolio for telecommunication companies in Mexico)

Abstract. The purpose of this study is to determine which customers are more profitable. Companies must consider the income their customers generate, as well as the costs of acquiring and keeping them. However the analysis can’t end there, companies are well aware that, although customers´ past performance could be helpful to asses their future performance, it could also be tricky. Companies have started to pay attention to the unpredictable customers´ behavior, therefore, analyzing customers´ long term value, or even customers´ life time value (LTV). Nevertheless, only few companies have bothered to evaluate if their desirable individual customers are, from the risk stand point, are desirable collective customers based on the customers´ value change. The value of each customer changes to reflect the identity of the group it belongs to, as well as to reflect in advance, the effect it will have on it´s group. This analysis has been designed to obtain the correlation between the risk-return rate of a customer and a general portfolio as the result of customer´s contribution to the LTV of such portfolio in telecommunication companies. Resumen. Con el fin de determinar qué clientes serán más rentables, un negocio debe considerar en primer lugar los ingresos que éstos han estado generando y cuánto costará adquirirlos y mantenerlos. Pero el análisis no se puede detener ahí, las empresas son conscientes de que el desempeño pasado, si bien resulta útil para hacer predicciones, puede ser muy engañoso. Las empresas han comenzado a tratar el problema del comportamiento impredecible de los clientes. Los negocios se han dedicado al análisis del valor a largo plazo, o incluso el valor vitalicio del cliente individual, pero muy pocas se han molestado en evaluar si todos sus clientes individuales deseables son, desde el punto de vista del riesgo, deseables colectivamente. Puesto que el valor de un cliente cambia para reflejar tanto la identidad del grupo al que se suma como el efecto anticipado en la predictibilidad del mismo. Este análisis esta diseñado para captar la correlación entre la tasa riesgo-retorno del cliente y la de la cartera general teniendo como resultado la contribución al valor vitalicio al riesgo de una cartera de clientes de empresas de telecomunicaciones

The erosion of nongambling spheres by smartphone gambling: a qualitative study on workplace and domestic disordered gambling

The potential dangers of internet-based gambling as compared with more traditional land-based gambling have been increasingly investigated over the past decade. The general consensus appears to be that although internet gambling might not be a more dangerous medium for gambling per se, the 24/7 availability it generates for problem gamblers, however, is. Because smartphones have become the most used way of gambling online, internet gambling must, therefore, be further subcategorized according to the device by which it is accessed. This study examines the issue by exploring the views of smartphone gamblers undergoing treatment for gambling disorder in focus group settings (N=35). Utilizing thematic analysis, the paper shows that smartphone gambling has colonized spaces previously regarded as nongambling spheres. The workplace, especially in male-dominated contexts, emerged as an accommodator and stimulator of gambling behavior, raising issues of productivity rather than criminality. Domestic gambling was mostly characterized by an invasion of bathroom and bedtime spheres of intimacy. The study examines the implications of prevention and treatment, focusing on the minimization of exposure to gambling stimuli, the erosion of intimacy that recovering gamblers must endure, and the necessity of embracing a broader definition of gambling-related harm

Analyzing the effect of tcp and server population on massively multiplayer games

Many Massively Multiplayer Online Role-Playing Games (MMORPGs) use TCP flows for communication between the server and the game clients. The utilization of TCP, which was not initially designed for (soft) real-time services, has many implications for the competing traffic flows. In this paper we present a series of studies which explore the competition between MMORPG and other traffic flows. For that aim, we first extend a source-based traffic model, based on player’s activities during the day, to also incorporate the impact of the number of players sharing a server (server population) on network traffic. Based on real traffic traces, we statistically model the influence of the variation of the server’s player population on the network traffic, depending on the action categories (i.e., types of in-game player behaviour). Using the developed traffic model we prove that while server population only modifies specific action categories, this effect is significant enough to be observed on the overall traffic. We find that TCP Vegas is a good option for competing flows in order not to throttle the MMORPG flows and that TCP SACK is more respectful with game flows than other TCP variants, namely, Tahoe, Reno, and New Reno. Other tests show that MMORPG flows do not significantly reduce their sending window size when competing against UDP flows. Additionally, we study the effect of RTT unfairness between MMORPG flows, showing that it is less important than in the case of network-limited TCP flows

Intruder States and their Local Effect on Spectral Statistics

The effect on spectral statistics and on the revival probability of intruder states in a random background is analysed numerically and with perturbative methods. For random coupling the intruder does not affect the GOE spectral statistics of the background significantly, while a constant coupling causes very strong correlations at short range with a fourth power dependence of the spectral two-point function at the origin.The revival probability is significantly depressed for constant coupling as compared to random coupling.Comment: 18 pages, 10 Postscript figure

Modeling spillover dynamics: understanding emerging pathogens of public health concern

The emergence of infectious diseases with pandemic potential is a major public health threat worldwide. The World Health Organization reports that about 60% of emerging infectious diseases are zoonoses, originating from spillover events. Although the mechanisms behind spillover events remain unclear, mathematical modeling offers a way to understand the intricate interactions among pathogens, wildlife, humans, and their shared environment. Aiming at gaining insights into the dynamics of spillover events and the outcome of an eventual disease outbreak in a population, we propose a continuous time stochastic modeling framework. This framework links the dynamics of animal reservoirs and human hosts to simulate cross-species disease transmission. We conduct a thorough analysis of the model followed by numerical experiments that explore various spillover scenarios. The results suggest that although most epidemic outbreaks caused by novel zoonotic pathogens do not persist in the human population, the rising number of spillover events can avoid long-lasting extinction and lead to unexpected large outbreaks. Hence, global efforts to reduce the impacts of emerging diseases should not only address post-emergence outbreak control but also need to prevent pandemics before they are established

El valor de la cartera de clientes de empresas de telecomunicaciones en México

Abstract. The purpose of this study is to determine which customers are more profitable. Companies must consider the income their customers generate, as well as the costs of acquiring and keeping them. However the analysis can’t end there, companies are well aware that, although customers´ past performance could be helpful to asses their future performance, it could also be tricky. Companies have started to pay attention to the unpredictable customers´ behavior, therefore, analyzing customers´ long term value, or even customers´ life time value (LTV). Nevertheless, only few companies have bothered to evaluate if their desirable individual customers are, from the risk stand point, are desirable collective customers based on the customers´ value change. The value of each customer changes to reflect the identity of the group it belongs to, as well as to reflect in advance, the effect it will have on it´s group. This analysis has been designed to obtain the correlation between the risk-return rate of a customer and a general portfolio as the result of customer´s contribution to the LTV of such portfolio in telecommunication companies.Key words: Life time value, risk-return, unpredictable behavior, valueResumen. Con el fin de determinar qué clientes serán más rentables, un negocio debe considerar en primer lugar los ingresos que éstos han estado generando y cuánto costará adquirirlos y mantenerlos. Pero el análisis no se puede detener ahí, las empresas son conscientes de que el desempeño pasado, si bien resulta útil para hacer predicciones, puede ser muy engañoso. Las empresas han comenzado a tratar el problema del comportamiento impredecible de los clientes. Los negocios se han dedicado al análisis del valor a largo plazo, o incluso el valor vitalicio del cliente individual, pero muy pocas se han molestado en evaluar si todos sus clientes individuales deseables son, desde el punto de vista del riesgo, deseables colectivamente. Puesto que el valor de un cliente cambia para reflejar tanto la identidad del grupo al que se suma como el efecto anticipado en la predictibilidad del mismo. Este análisis esta diseñado para captar la correlación entre la tasa riesgo-retorno del cliente y la de la cartera general teniendo como resultado la contribución al valor vitalicio al riesgo de una cartera de clientes de empresas de telecomunicaciones.Palabras Claves: Comportamiento impredecible, riesgo-retorno, valor, valor vitalici