Smooth multibidding mechanisms

► We propose a smooth multibidding mechanism for environments where a group of agents have to choose one out of several projects. ► Our proposal is related to the multibidding mechanism (Pérez-Castrillo and Wettstein, 2002). ► The equilibrium outcome of the mechanism is unique. ► It ensures an equal sharing of the surplus. It enables reaching an outcome as close to efficiency as is desired.