Estimating Time Required to Reach Bid Levels in Online Auctions

The final version of the publication can be found in the Journal of Management Information Systems, Winter 2009-10, Vol. 26, No. 3, pp. 275-301 http://www.mesharpe.com/journals.asp

Posted: 6 May 2009 Last revised: 26 Apr 2010

See all articles by Subhajyoti Bandyopadhyay

Subhajyoti Bandyopadhyay

University of Florida - Warrington College of Business Administration

Seema Bandyopadhyay

University of Florida - College of Engineering

Date Written: January 5, 2010

Abstract

Sellers in eBay are often small-business owners whose livelihood depends on fast turnaround of their cash flows. Unlike in traditional auctions, these sellers are content to sell as soon as some target price is reached. While a wealth of literature exists on the final rent of the various stakeholders in a traditional auction setting, what is of interest here is to estimate the time required to reach a certain bid level in ongoing auctions. This paper introduces an analytical model to estimate the time it takes an online auction to reach a pre-specified price threshold. The motivation for the research is to avoid unnecessary delays in conducting the transaction. Specifying the right duration would benefit small sellers who would realize the revenue proceeds from the sale faster. To this end, we model the bidding process as an infinite quasi-birth-death process, characterized by bursts of rapid bidding and subsequent lulls. We obtain closed-form solutions for the transient probability distribution in the frequency domain of the bid prices in an ongoing auction, which are then used to compute the transient probability distributions in the time domain. Experienced auctioneers can use these results to estimate expected ending times for their auctions. Sample observations from online auctions indicate that there might be potential room for improvement for sellers in setting their auction ending times. Simulations of the QBD processes back up the theoretical observations.

Keywords: auction bid price, transient analysis, correlated random walk, quasi-birth-death process, ‘Buy It Now’ price, small business, auction cash turnaround time

JEL Classification: D44

Suggested Citation

Bandyopadhyay, Subhajyoti and Bandyopadhyay, Seema, Estimating Time Required to Reach Bid Levels in Online Auctions (January 5, 2010). The final version of the publication can be found in the Journal of Management Information Systems, Winter 2009-10, Vol. 26, No. 3, pp. 275-301 http://www.mesharpe.com/journals.asp. Available at SSRN: https://ssrn.com/abstract=1398066

Subhajyoti Bandyopadhyay (Contact Author)

University of Florida - Warrington College of Business Administration ( email )

Gainesville, FL 32611
United States

Seema Bandyopadhyay

University of Florida - College of Engineering ( email )

United States

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