We propose a new, easy-to-implement class of payment rules, "Reference Rules" to make core-selecting package auctions more robust. Small, almost-riskless, profitable deviations from "truthful bidding" are often easy for bidders to find under currently used payment rules. Reference Rules perform...

I describe a new static (sealed-bid) auction for differentiated goods--the "Product-Mix Auction." Bidders bid on multiple assets simultaneously, and bid-takers choose supply functions across assets. The auction yields greater efficiency, revenue, information, and trade than running multiple...

We present a model where agents care about their neighbors' actions and can pressure them to take certain actions. Exerting pressure is costly for the exerting agent and it can impact the pressured agents by either lowering the cost of taking the action (which we call "positive pressure" ) or...