Submissions from all areas related to microeconomic theory are welcome, including (but not limited to): Auctions, Collective decision making, Collusion, cartels and mergers, Contests and tournaments, Dynamic models and timing, Economics of blockchain, Environmental industrial economics, Imperfect competition, Information economics, Institutional design, Market design, Mechanism design, Networks, Platform competition and two-sided markets, Price competition, Procurement, Product differentiation, Quantity competition, R&D, Spatial competition. The workshop has a tradition of presentations followed by a brief discussion. Participants are therefore expected to discuss one paper in their field of interest. Authors of accepted papers can expect to be notified by mid-April.