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如何评判一个投标人的报价是否低于其成本是合理低价评标的关键因素之一.论文首先运用博弈理论思想分析了二级密封拍卖招标模式投标人的最优竞标策略是按其成本报价.然后针对投标人在二级密封拍卖招标模式下的最优竞标策略是按其真实成本报价这一特点,利用假设检验理论结合竞标人报价数的样本容量,建立了基于竞标人报价样本容量的工程成本概率判断模型.在α置信水平下,竞标人报价是落在拒绝域还是接受域以判断投标人的投标报价是否低于其成本.该模型既解决了如何判断施工企业投标报价是否低于成本的难题,又丰富和充实了工程评标理论.
How to judge whether a bidder’s bid is lower than its cost is one of the key factors for a reasonable low price bid evaluation.Firstly, the thesis analyzes the bidding’s bidding strategy of bidirectional sealed auction bidding according to its cost Then the bidding strategy for bidders under the second auction model is based on the true cost of the bidding feature, using hypothesis testing theory combined with the bidder ’s sample size, the establishment of a sample based on the bidder quoted sample size Under a confidence level, the bidder’s bid falls on the rejected domain or the accepted domain to judge whether the bidder’s bid price is lower than its cost. This model not only solves the problem of how to judge whether the bidding price of construction enterprise is lower than Cost problems, but also enrich and enrich the project evaluation standard.