communication we find that collusive agreements are more fragile when the gain from a unilateral deviation is larger. We also find … ; multi-unit auction ; divisible-good auction ; allocation rule ; communication …

engage in face-to-face communication and can observe the opponent's face during the conversation before choosing actions in …

to collude among bidding participants due to a provision of a simple communication channel. The results suggest that the … combinatorial bidding format does not bring higher efficiency. Allowing for communication increases efficiency in both examined … allocation compared to the auction formats without the communication channel. Combinatorial bidding on packages makes the …

We study cheap-talk pre-play communication in the static all-pay auctions. For the case of two bidders, all correlated … and communication equilibria are payoff equivalent to the Nash equilibrium if there is no reserve price, or if it is … robust to preplay communication between the bidders. If there are three or more symmetric bidders, or two symmetric bidders …