Hahn and Wallsten [1] wrote that network neutrality “usually means that broadband service provide... more Hahn and Wallsten [1] wrote that network neutrality “usually means that broadband service providers charge consumers only once for Internet access, do not favor one content provider over another, and do not charge content providers for sending information over broadband lines to end users.” We study the implications of non-neutral behaviors under a simple model of linear demand-response to usage-based prices. We take into account advertising revenues for the content provider and consider both cooperative and non-cooperative scenarios. We show that by adding the option for one provider to determine the amount of side payment from the other provider, not only do the content provider and the internaut suffer, but also the Access Provider’s performance degrades.
Recent publications have reached conflicting conclusions on whether allowing users to have unlimi... more Recent publications have reached conflicting conclusions on whether allowing users to have unlimited free access for downloading music and films is beneficial or not for the content production industry (CPI). Not only do models differ in their conclusions, but there has also not been an agreement on the validity of data on the impact of free access to music and films using P2P on the profits of the CPI and on the demand for CDs and DVDs. We provide in this paper a model that allows to study this question using elementary mathematical tools. In particular, it includes the effect of sampling on the willingness to buy. Preliminary numerical experiments show that benefits are maximized by avoiding any control measures against unauthorized sampling over P2P networks.
In this paper, we present a tool to help reduce the uncertainty presented in the resource selecti... more In this paper, we present a tool to help reduce the uncertainty presented in the resource selection problem when information is subjective in nature. The candidates and the "ideal" resource required by evaluators are modeled by fuzzy subsets whose elements are trapezoidal fuzzy numbers (TrFN). By modeling with TrFN the subjective variables used to determine the best among a set of resources, one should take into account in the decision-making process not only their expected value, but also the uncertainty that they express. A mean quadratic distance (MQD) function is defined to measure the separation between two TrFN. It allows us to consider the case when a TrFN is wholly or partially contained in another. Then, for each candidate a weighted mean asymmetric index (WMAI) evaluates the mean distance between the TrFNs for each of the variables and the corresponding TrFNs of the "ideal" candidate, allowing the decision-maker to choose among the candidates. We apply this index to the case of the selection of the product that is best suited for a "pilot test" to be carried out in some market segment.
Hahn and Wallsten [1] wrote that network neutrality “usually means that broadband service provide... more Hahn and Wallsten [1] wrote that network neutrality “usually means that broadband service providers charge consumers only once for Internet access, do not favor one content provider over another, and do not charge content providers for sending information over broadband lines to end users.” We study the implications of non-neutral behaviors under a simple model of linear demand-response to usage-based prices. We take into account advertising revenues for the content provider and consider both cooperative and non-cooperative scenarios. We show that by adding the option for one provider to determine the amount of side payment from the other provider, not only do the content provider and the internaut suffer, but also the Access Provider’s performance degrades.
Recent publications have reached conflicting conclusions on whether allowing users to have unlimi... more Recent publications have reached conflicting conclusions on whether allowing users to have unlimited free access for downloading music and films is beneficial or not for the content production industry (CPI). Not only do models differ in their conclusions, but there has also not been an agreement on the validity of data on the impact of free access to music and films using P2P on the profits of the CPI and on the demand for CDs and DVDs. We provide in this paper a model that allows to study this question using elementary mathematical tools. In particular, it includes the effect of sampling on the willingness to buy. Preliminary numerical experiments show that benefits are maximized by avoiding any control measures against unauthorized sampling over P2P networks.
In this paper, we present a tool to help reduce the uncertainty presented in the resource selecti... more In this paper, we present a tool to help reduce the uncertainty presented in the resource selection problem when information is subjective in nature. The candidates and the "ideal" resource required by evaluators are modeled by fuzzy subsets whose elements are trapezoidal fuzzy numbers (TrFN). By modeling with TrFN the subjective variables used to determine the best among a set of resources, one should take into account in the decision-making process not only their expected value, but also the uncertainty that they express. A mean quadratic distance (MQD) function is defined to measure the separation between two TrFN. It allows us to consider the case when a TrFN is wholly or partially contained in another. Then, for each candidate a weighted mean asymmetric index (WMAI) evaluates the mean distance between the TrFNs for each of the variables and the corresponding TrFNs of the "ideal" candidate, allowing the decision-maker to choose among the candidates. We apply this index to the case of the selection of the product that is best suited for a "pilot test" to be carried out in some market segment.
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Papers by Julio Rojas