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An empirical analysis of the main drivers affecting the buyer surplus in E-auctions

机译：对电子拍卖中影响买方剩余的主要驱动因素的实证分析

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摘要

We empirically examine the impacts of the product category, the auction format, the 2008 global financial crisis, the group purchasing, the contract type, the platform ownership, and the number of participating suppliers on the buyer surplus obtained from e-auctions. To this end, we collect a unique dataset from a purchasing organisation that offers e-auction solutions to its corporate customers. By using a standard Tobit model, we show that the product categories, the auction type, and the number of participating suppliers have significant effects on the decrease in the procurement prices with respect to the minimum of the initial submitted bids. It is observed that the 2008 global financial crisis led to an increase in the buyer surplus. We classify the product categories into three groups based on their impacts on the average of the decrease in the procurement prices. We show that the average decrease in procurement prices is higher for the group purchasing option than for the individual buying option. It is concluded that the types of contract between buyers and auctioneer and the platform ownership have no statistically significant effects on the average decrease in procurement prices.
机译：我们根据经验检查产品类别，拍卖形式，2008年全球金融危机，团购，合同类型，平台所有权和参与供应商数量对通过电子拍卖获得的买方剩余的影响。为此，我们从一家采购组织收集了唯一的数据集，该组织为其企业客户提供了电子拍卖解决方案。通过使用标准的Tobit模型，我们显示出产品类别，拍卖类型和参与的供应商数量对采购价格下降的影响（相对于最初提交的最低出价而言）具有重大影响。据观察，2008年全球金融危机导致买方盈余增加。根据产品类别对平均采购价格下降的影响，我们将产品类别分为三类。我们显示，集体购买方案的平均采购价格下降幅度高于个人购买方案的平均价格。结论是，买卖双方之间的合同类型和平台所有权对采购价格的平均下降没有统计学意义的影响。

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