Abstract

http://ssrn.com/abstract=1132723
 
 

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The Long Tail is Longer than You Think: The Surprisingly Large Extent of Online Sales by Small Volume Sellers


Joseph Bailey


University of Maryland

Gordon Gao


affiliation not provided to SSRN

Wolfgang Jank


University of Maryland - Decision and Information Technologies Department

Mingfeng Lin


University of Arizona - Eller College of Management

Henry C. Lucas


University of Maryland - Robert H. Smith School of Business

Siva Viswanathan


University of Maryland - Robert H. Smith School of Business

May 13, 2008


Abstract:     
Sales by small volume sellers are systematically undercounted in public and private surveys of ecommerce. The twin results are that the contribution of small sellers to the ecommerce marketplace is considerably larger than generally assumed and the overall market is larger by this difference.

As the costs of selling things online have fallen with cheaper equipment and communications fees, and with the availability of retail platform services provided by eBay, Amazon.com, Google, and many other firms, Internet retailing has grown to include many small businesses and individual occasional sellers, particularly in the United States. But how much do these "small sellers" sell each year?

U.S. Government statistics give some insight into the type and sales volume of online sellers, but the Government's current methods of data collection and analysis are better suited to tracking larger, traditionally organized businesses, rather than "small sellers," whether operating as small businesses or as individuals. Traditionally, small sellers simply were ignored. In traditional retail markets, the number of businesses with low annual revenues may not be significant because the contribution of such small sellers to the overall size of the market is relatively small. However, in Internet retailing, there are millions of small sellers that, in the aggregate, make a large contribution to the overall market. Yet these small sellers are systematically overlooked in government and private data collection and analysis.

In this paper, we estimate the size of Internet retailing in 2004 to have been over 20% above U.S. Government estimates - and the difference is explained by a more accurate accounting of sales by small sellers. We do this through a variety of methods and the development of confidence intervals in our data. We hope that the techniques outlined in this paper will give greater insight into the magnitude of Internet retailing, particularly in the "long tail" of the ecommerce market occupied by small volume sellers.

Number of Pages in PDF File: 8

Keywords: Internet Retailing, Long Tail, Electronic Commerce

JEL Classification: L81, O38

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Date posted: May 13, 2008  

Suggested Citation

Bailey, Joseph and Gao, Gordon and Jank, Wolfgang and Lin, Mingfeng and Lucas, Henry C. and Viswanathan, Siva, The Long Tail is Longer than You Think: The Surprisingly Large Extent of Online Sales by Small Volume Sellers (May 13, 2008). Available at SSRN: http://ssrn.com/abstract=1132723 or http://dx.doi.org/10.2139/ssrn.1132723

Contact Information

Joseph Bailey (Contact Author)
University of Maryland
College Park, MD 20742
United States
Gordon Gao
affiliation not provided to SSRN
Wolfgang Jank
University of Maryland - Decision and Information Technologies Department ( email )
Robert H. Smith School of Business
4300 Van Munching Hall
College Park, MD 20742
United States
301-405-1118 (Phone)
HOME PAGE: http://www.smith.umd.edu/faculty/wjank/
Mingfeng Lin
University of Arizona - Eller College of Management ( email )
Tucson, AZ 85721
United States
Henry C. Lucas
University of Maryland - Robert H. Smith School of Business ( email )
College Park, MD 20742-1815
United States
Siva Viswanathan
University of Maryland - Robert H. Smith School of Business ( email )
College Park, MD 20742-1815
United States
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