本研究以禀赋效应理论为基础，采用估值任务范式考察不同维度产品信息条件下禀赋效应的稳定性。研究一在平衡了买卖双方对同类型产品信息的了解程度、关注点和交易倾向等因素后，验证在不同维度产品信息呈现条件下（市场评价信息 vs. 复合信息）禀赋效应的稳定性。

在给定禀赋效应稳定性的条件下，如何理解市场交易的达成机制？这是研究二要完成的任务。在与研究一相同的任务条件下，研究二考察禀赋效应被减弱或出现反转的条件。基于市场交易的实际场景，研究二假设买卖双方在出价后的讨价还价过程中，让步意愿有可能会导致禀赋效应的消失。

Based on the endowment effect theory, this study adopts the valuation task paradigm to test the stability of endowment effect under different product information conditions. Study 1 verified the stability of endowment effect under different dimensions of product information (market valuation information vs. compound infomation ) after balancing factors such as buyer's and seller's understanding of the same type of product information, focus and trading willingness.

Given the stability of endowment effect, how to understand the mechanism of market transaction? That's the task of study 2. Under the same task conditions as study 1, study 2 examined the conditions under which the endowment effect is weakened or reversed. Based on the actual market transaction scenario, study 2 assumed that the bargaining process between buyers and sellers after bidding may lead to the disappearance of endowment effect.