Xiaoshu Xu

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We investigate a private value auction in which a single " entrant " on winning imposes a negative externality on two " regular " bidders. In an English auction when all bidders are active, " regular " bidders free ride, exiting before price reaches their values. In a …rst-price sealed-bid auction incentives for free riding and aggressive bidding coexist,(More)
—Web-based online submission of computer-aided design (CAD) models for prototype parts is getting popular among service bureaus and gaining wider acceptance among rapid prototyping users. In the web-based rapid prototyping (RP), an instant quote needs to be generated for an arbitrary polygonal model (usually in STL format). Hence the manufacturability(More)
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