Ordinal Approximation for Social Choice, Matching, and Facility Location Problems Given Candidate Positions -- Infinite-Duration Poorman-Bidding Games -- Incentives and Coordination in Bottleneck Models -- Strategy-Proof Incentives for Predictions -- Revealed Preference Dimension via Matrix Sign Rank -- Timing Matters: Online Dynamics in Broadcast Games -- A Simple Mechanism for a Budget-Constrained Buyer -- The Communication Complexity of Graphical Games on Grid Graphs.-Approximating the Existential Theory of the Reals -- Pricing Multi-Unit Markets -- Optimal Pricing for MHR Distributions -- Learning Convex Partitions and Computing Game-theoretic Equilibria from Best Response Queries -- The Fluid Mechanics of Liquid Democracy -- Equilibrium and Inefficiency in Multi-Product Cournot Games -- Combinatorial Assortment Optimization -- Varying the Number of Signals in Matching Markets -- Simple and Efficient Budget Feasible Mechanisms for Monotone Submodular Valuations -- Social Welfare and Profit Maximization from Revealed Preferences -- Opinion Dynamics with Limited Information -- The Fair Division of Hereditary Set Systems -- Stable Marriage with Groups of Similar Agents -- Byzantine Preferential Voting -- Robust and Approximately Stable Marriages Under Partial Information -- Prophet Inequalities vs. Approximating Optimum Online -- Optimal Mechanism Design with Risk-Loving Agents -- Robust Bounds on Choosing from Large Tournaments -- Equilibria in Routing Games with Edge Priorities -- Cost-Sharing Games in Real-Time Scheduling Systems -- How to Hide in a Network -- Multiplicative Pacing Equilibria in Auction Markets -- Trading Networks with Bilateral Contracts -- Markets for Public Decision-making -- Information Signal Design for Incentivizing Team Formation -- Revenue Management on an On-Demand Service Platform -- Implementing the Lexicographic Maxmin Bargaining Solution -- Exploration vs. Exploitation in Team Formation.