Target-oriented use of strategic sourcing tools: A critical analysis creating process awareness for electronic reverse auctions

The success of an electronic reverse auction (eRA) does not manifest just in price reductions but also in the reduction of transaction costs and costs of the purchasing organization. A dynamic process view allows a better understanding of these dimensions. We illustrate that using the Total Cost of Ownership (TCO) concept. The goal of our study is to determine the impacts of eRAs on Total Cost of the Purchasing Function (TCPF). Therefore we analyze the impacts on three different levels: the process step, the transaction, and the tool integration level, enabling process awareness of firms using eRAs.     

Willingness to Pay versus Expected Consumption Value in Vickrey Auctions for New Experience Goods

Over the past two decades, Vickrey auctions have been widely used to elicit willingness to pay for new food products. This article shows that in a multiperiod context, it can be optimal for consumers to bid higher than the expected consumption value for a new experience good to obtain information about how the new good fits into their preference set. The degree of uncertainty about the consumption value, the purchasing frequency, and expected future market prices affect both the expected value of the quality information and the subgame perfect bidding strategy in Vickrey auctions for new experience goods.     

Spectrum auction design: Simple auctions for complex sales

Following the successful PCS Auction conducted by the US Federal Communications Commission in 1994, auctions have replaced traditional ways of allocating valuable radio spectrum. Spectrum auctions have raised hundreds of billion dollars worldwide and have become a role model for market-based approaches in the public and private sectors. The PCS spectrum was sold via a simultaneous multi-round auction, which forces bidders to compete for licenses individually even though they typically value certain combinations. This exposes bidders to risk when they bid aggressively for a desired combination but end up winning an inferior subset. Foreseeing this possibility, bidders may act cautiously with adverse effects for revenue and efficiency. Combinatorial auctions allow for bids on combinations of licenses and thus hold the promise of improved performance. Recently, a number of countries worldwide have switched to the combinatorial clock auction to sell spectrum. This two-stage auction uses a core-selecting payment rule. The number of possible packages a bidder can submit grows exponentially with the number of licenses, which adds complexity to the auction. For larger auctions with dozens of licenses bidders cannot be expected to reveal all their valuations during such an auction. We analyze the impact of two main design choices on efficiency and revenue: simple “compact” bid languages versus complex “fully expressive” bid languages and simple “pay-as-bid” payment rules versus complex “core-selecting” payment rules. We consider these design choices both for ascending and sealed-bid formats. We find that simplicity of the bid language has a substantial positive impact on the auction?s efficiency and simplicity of the payment rule has as a substantial positive impact on the auction?s revenue. The currently popular combinatorial clock auction, which uses a complex bid language and payment rule, achieves the lowest efficiency and revenue among all treatment combinations.     

Analysis of spectrum auctions in India—An application of the opportunity cost approach to explain large variations in spectrum prices

The remarkable growth of mobile communication has reinforced the significance of the radio spectrum for mobile network operators. The availability of spectrum varies considerably between different countries due to national regulatory decisions. The focus in this paper is on India where operators have access to a limited amount of spectrum. This paper analyses the value of spectrum by estimating the opportunity cost, which is calculated by the savings that can be achieved by acquiring appropriate amount of spectrum rather than investing in additional base stations. The applied approach combines network deployment, user demand levels, cost, and capacity issues, which are integrated in the application in the opportunity cost approach for spectrum. The opportunity cost of spectrum is compared with prices paid at spectrum auctions. The analysis includes a discussion of drivers that determine the willingness to pay for spectrum. The results show that the opportunity cost of spectrum in relation to auction prices is lower than prices operators paid for 3G spectrum in the metro circles (service areas) while the value derived from the opportunity cost is higher than auction prices in the remaining circles.     

依托现代信息技术构建科学规范的涉诉资产运行机制

本文主要对现阶段我国司法拍卖改革中引入第三方交易平台作为中间机构,以及在改革中引入电子竞价方式处置涉诉资产的现状做了调研;并就文章作者所在单位采取的做法做了利弊得失的分析,并对涉诉资产处置采取竞价的方式提出了建议。     

How Seller and Product Characteristics Impact Promotion on eBay

This study draws on signaling theory to test whether seller and product characteristics impact the use of display-type versus informational-type promotion on eBay. The authors predict that display-type promotion is used by less-experienced sellers who cannot promote on the basis of their own seller ratings. The authors predict that experienced sellers, on the other hand, prefer informational promotion since their high ratings make seller-provided statements more credible. In addition to seller characteristics, the authors predict that product characteristics, such as price and product condition, also impact promotion. It is expected that higher prices drive greater investments in display-type promotions overall, even if such promotion is less effective. Finally, it is hypothesized that the better the condition of the product, the greater the use of informational promotion since this kind of disclosure is especially influential. The hypotheses were tested using a large data set of auction data from eBay and received excellent support. Implications and directions for future research are discussed.     

Does It Pay to Promote on eBay?

Promotional upgrades to auction listings are now a ubiquitous feature of auction Web sites. We examine 705 auctions of a single consumer-electronic product on eBay and test whether use of various promotions results in a greater probability of sale or a higher realized price. We find that promotions that focus on display enhancements, such as border, bold, or highlight, are not worth the cost. However, the subtitle promotional tool is effective and worth the cost. We also find interesting results regarding seller reputation: although seller reputation does not increase the probability of a sale overall, it can result in higher realized price if a reputable seller is selected. Implications for promoting on eBay are discussed.     

Strategic Implications of Reverse Auctions

ABSTRACT

A dramatic global power shift from seller to buyer is taking place in the reverse auction environment, with the value of materials purchased online expected to increase to more than $3 trillion in 2003. Techniques, opportunities, and problems associated with reverse auctions are described in the following paper. Special emphasis is given to General Electric Appliances. Companies such as General Electric Appliances have achieved large short-term cost savings and automation of traditionally labor-intensive processes. Reverse procurement auctions have had the effect of introducing information asymmetry in favor of the buyer, producing billions in cost savings. At least some short-run cost reductions may have come from vendors surrendering brand premiums. Further significant cost savings may not be possible; among other issues, long-term benefits to buyers may be mitigated if few vendors survive the migration to the reverse auction procurement environment, thus decreasing vendor competition.     

eBay as the “Terminator”: Determining User Suspension From Feedback Ratings

Good reputations are won and lost by individuals and companies in various forms on the Internet. eBay has the earliest and most well-known formal ecommerce reputation system and “terminates” members who do not play by the rules. We examine a dataset of 102,035 Not-A-Registered-User (NARU) eBay account feedback ratings from eight different countries. Careful investigation of feedback density over time reveals that threshold values for termination can be detected from feedback history. Several modeling approaches are studied and the Local Polynomial Regression Model (LPRM) is chosen for analysis because it is data driven and no prespecified parametric functional form is assumed. Analyzing US data, we find that large-volume sellers have a higher overall negative feedback compared to those of medium volume sellers. We use the second derivative of the LPRM to explicitly determine the threshold points, that is, the point where a seller's negative feedback increases significantly. These thresholds vary from as much as 18.5 weeks prior to termination (for Medium sellers), to as little as 8.5 weeks (for Large sellers). We find similar results in the other countries. These threshold points provide valuable information for buyers when choosing a seller. Our analysis suggests that eBay's termination policy appears to be correlated to fee revenue.