buyers is known by all of them. Then two cooperative games, which we call the auction game and the ring game, corresponding … to such a market situation are considered. Auction games are related to special total big boss games, while ring games … auction game and the ring game arising from the same two-corner market situation. For both classes of games relevant solution …

In auctions with externalities, it is well-known that the core can be empty, which is undesirable both in terms of … stability and fairness. Nevertheless, some auction outcome must be chosen. We separate deviations into two types: deviations by … the sense that the seller and the bidders experience justified envy. We show that the core is nonempty if bidders cannot …