Interplay between security providers, consumers, and attackers: a weighted congestion game approach

Network users can choose among different security solutions to protect their data. Those solutions are offered by competing providers, with possibly different performance and price levels. In this paper, we model the interactions among users as a noncooperative game, with a negative externality coming from the fact that attackers target popular systems to maximize their expected gain. Using a nonatomic weighted congestion game model for user interactions, we prove the existence and uniqueness of a user equilibrium, compute the corresponding Price of Anarchy, that is the loss of efficiency due to user selfishness, and investigate some consequences for the (higher-level) pricing game played by security providers.Game theory;Weighted games; Security

Réception de la théorie postcoloniale dans le féminisme québécois

Ce texte propose d’utiliser le féminisme postcolonial comme point d’appui pour explorer les discours identitaires à l’oeuvre dans le féminisme québécois. La première partie du texte aborde la génèse du féminisme postcolonial à partir des écrits de Gayatri Spivak, Chandra Talpade Mohanty et Uma Narayan. Dans la seconde partie, l’auteure discute de la figure centrale à l’oeuvre dans le féminisme québécois, marqué au cours des années 60 par le récit politique de l’oppression nationale. Selon son analyse, cet héritage a permis au féminisme québécois d’occulter le difficile exercice d’identifier les rapports de pouvoir entre les femmes de la majorité et les autres femmes.In this text, postcolonial feminism is the starting point of an exploration of identity discourses operating within Quebec feminism. The first part of the text is devoted to the origins of postcolonial feminism through the works of Gayatri Spivak, Chandra Talpade Mohanty and Uma Narayan. In the second part of the text, we discuss the leading representations in Quebec feminism, shaped by the political narration of national oppression. According to our analysis, this heritage has made it possible for Quebec feminism to escape from the difficult exercise of identifying power relations between majority-culture women and other women