Supply Demand Methodology

In order to provide meaningful data this report uses a subset of eBay’s total data.

First we only take eBay’s current top ranked listings. These listings have been scored and deemed by eBay as the most relevant and most likely to make a sale against other listings.

Next we include only the listings that were created in the last 18 months.  This time period enables enough data points for the analysis to be useful. There could be a listing listed prior to the 18 month period that is still achieving recent sales that will not appear in this report. If it is a listing worth your attention it will appear in the Top 500 report.

Excluded from this data set are: listings with zero sales, single quantity and auction listings. 

What remains is a very clean set of comparable listings.