In multi-attribute procurement auctions with multiple objects, the auctioneer may care about the interplay of quality attributes that do not belong to the same item -- like each item's delivery time, if all items are needed at once. This can influence the performance of the auction mechanism. We...

This paper considers a model of incomplete information with selfish rational types and types who comply with social or moral norms by intrinsic motivation. We explore 'complier optimal norms', which maximize expected average utility of all compliant types given that the norms are commonly known....