Characterizing TTC via endowments-swapping-proofness and truncation-proofness
在Shapley-Scarf对象重新分配问题中,证明了TTC是唯一同时满足个体理性、禀赋交换防操纵性和截断防操纵性的规则,且截断防操纵性可替代策略防操纵性。
In the object reallocation problem introduced by Shapley and Scarf (1974), Fujinaka and Wakayama (2018) showed that Top Trading Cycles (TTC) is the unique rule satisfying individual rationality , strategy-proofness , and endowments-swapping-proofness . We show that the uniqueness remains true if strategy-proofness is weakened to truncation-proofness . • Only TTC is individually rational , endowments-swapping-proof , and truncation-proof . • We prove this characterization result by minimum counterexample. • Endowments-swapping-proofness cannot be replaced with pair-efficiency .