PENNIES FROM EBAY: THE DETERMINANTS OF PRICE IN ONLINE AUCTIONS

Warning: is_dir(): open_basedir restriction in effect. File(/libraries) is not within the allowed path(s): (/home/web1050:/usr/share/php) in libraries_get_libraries() (line 176 of /home/web1050/public_html/sites/all/modules/contrib/libraries/libraries.module).

This paper presents an exploratory analysis of the determinants of prices in online auctions for collectible United States one-cent coins at the eBay web site. Starting with an initial data set of 20,000 auctions, we perform regression analysis on a restricted sample of 461 coins for which we obtained estimates of book value. We have three major findings. First, a seller's feedback ratings, reported by other eBay users, have a measurable effect on her auction prices. Negative feedback ratings have a much greater effect than positive feedback ratings do. Second, minimum bids and reserve prices have positive effects on the final auction price. In particular, minimum bids appear only to have a significant effect when they are binding on a single bidder, as predicted by theory. Third, when a seller chooses to have her auction last for a longer period of days, this significantly increases the auction price on average.