Iterative Versus Standard Deferred Acceptance: Experimental Evidence★
通过实验比较了标准延迟接受机制与两种迭代式延迟接受机制,发现迭代机制下达到稳定匹配的比例更高,原因是更多参与者遵循了均衡诚实策略。
Abstract We test experimentally the Gale-Shapley Deferred Acceptance (DA) mechanism versus two versions of the Iterative Deferred Acceptance Mechanism (IDAM), in which students make applications one at a time. A significantly higher proportion of stable outcomes is reached under IDAM than under DA. The difference can be explained by a higher proportion of subjects following an equilibrium truthful strategy under iterative mechanisms than the dominant strategy of truthful reporting under DA. We associate the benefits of iterative mechanisms with the feedback on the outcome of the previous application they provide to students between steps.