Abstract. 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.

Abstract:Hahn and Wallsten [3] wrote that net 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." In this paper we study the implications of being non-neutral, particularly by charging the content providers. Using game theoretic tools, we show that by adding the option for the service providers to charge the content providers, not only may the content providers and the internauts suer, but also the access provider's performance degrades.

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Recent publications have reached conicting conclusions on wheather allowing users to have unlimitted free access for downloading music and lms is benetial or not for the content provider industrty. Not only do models dier 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 lms using P2P on the prots of CPIs 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 eect of sampling on the the willingness to buy. Preliminary numerical experiments show that benets are maximized by avoiding any control measures against unauthorized sampling over P2P networks.

Internet growth has allowed unprecedented widespread access to cultural creation including music and lms, to knowledge, and to a wide range of consumer information. At the same time, it has become a huge source of business opportunities. Along with great benets that this access to the Internet provides, the open and free access to the Internet has encountered large opposition based on political, economical and ethical reasons. An ongoing battle over the control on Internet access has been escalating on all these fronts. In this paper we describe rst some of the ideological roots of free access to the Internet along with its main opponents. We then focus on the problem of Internet piracy and analyze the eciency of eorts to reduce the availability of copyrighted creations that are available for non-authorized free download.

Abstract. 2010 has witnessed many public consultations around the world concerning Net neutrality. A second legislative phase that may follow, could involve various structural changes in the Internet. The status that the Internet access has in Europe as a universal service evolves as the level of quality of service (QoS) to be offered improves. If guarantees on QoS are to be imposed, as requested by several economic actors, it would require introducing new indicators of quality of services, as well as regulation legislation and monitoring of the offered levels of QoS. This tendency in Europe may change the nature of the Internet from a best effort network to, perhaps, a more expensive one, that offers guaranteed performance. This paper presents an overview of the above issues as well as an overview of recent research on net-neutrality, with an emphasis on game theoretical approaches.

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e evolution of the Internet has come to a point where almost at the same time, governments all around the world feel the need for legislation to regulate the use of the Internet. In preparing the legislation, consultations were called by various governments or by the corresponding regulation bodies. We describe in this paper the various consultations as well as the background related to the Net Neutrality question in each case. Rather than describing the answers to each consultation, which are available and which have already been analyzed, we focus on comparing the consultations and the statistical gures related to the participation in them. Résumé : L' évolution de l'Internet est arriv à un point où presque simultanément, des gouvernements au tour du globe ont senti le besoin de légiférer pour réguler l'usage de l'Internet. En préparant ces législations, des consultations publiques ont été proposées par les autorités. Nous décrivons dans cet article plusieurs consultations ainsi que les circonstences liées à la question de la Neutralité dans chaque cas. Au lieu de décrir les réponses, déja connues et analysées, nous nous focalisons sur la comparaison entre les consultations et sur les données statistiques qui en sont liées. Key-words: