The Shapley index for music streaming platforms
研究了一种基于夏普利值的艺术家流行度指数，用于分配订阅收入，并通过公理刻画将其与行业常用的按比例和用户中心指数区分。
We study an index to measure the popularity of artists in music streaming platforms. This index, which can be used to allocate the amount raised via paid subscriptions among participating artists, is based on the Shapley value, a centerpiece in cooperative game theory. We characterize this Shapley index combining several axioms formalizing principles with normative appeal. This permits to place the index in the literature, as an alternative to the well-known (and widely used in the industry) pro-rata and user-centric indices.