We conduct experiments on common value auctions with rationing. In each auction, the good is randomly allocated to each of the k highest bidders, at the (k+1)st highest price. As the degree of rationing increases, the theoretical winner's curse decreases, and the equilibrium bid function...

Participants in an experimental market choose to enter private value trades manually and/or algorithmically. Each algorithm or trading robot makes or takes liquidity based on the trader's current marginal valuation modulo a spread chosen by the trader. We evaluate experimental outcomes against...