We study the endogenous formation of networks in a controlled experiment. Subjects derive benefits from being linked to others and incur costs for links they make. The theoretically predicted network has a "star"-type architecture, with "periphery" subjects linking to a unique "center". This...

Multi-license ascending auctions have been criticized because they allow bidders to reduce their demand and split the market at low prices. At the same time, it has been argued that the ascending auction is a suitable format for a seller who wants to exploit preemptive motives. Incumbent firms...