Frongillo, Rafael MDella Penna, NicolasReid, MarkBartlett, P.2015-12-10December 39781627480031http://hdl.handle.net/1885/65138We strengthen recent connections between prediction markets and learning by showing that a natural class of market makers can be understood as performing stochastic mirror descent when trader demands are sequentially drawn from a fixed distribution. ThisKeywords: Making mechanism; Market analysis; Optimization problems; Prediction markets; Stationary points; Stochastic approach; Traditional markets; Walrasian equilibrium; Costs; Learning algorithms; Random processes; Stochastic systems; Commerce20122019-05-19