How Seller and Product Characteristics Impact Promotion on eBay

This study draws on signaling theory to test whether seller and product characteristics impact the use of display-type versus informational-type promotion on eBay. The authors predict that display-type promotion is used by less-experienced sellers who cannot promote on the basis of their own seller ratings. The authors predict that experienced sellers, on the other hand, prefer informational promotion since their high ratings make seller-provided statements more credible. In addition to seller characteristics, the authors predict that product characteristics, such as price and product condition, also impact promotion. It is expected that higher prices drive greater investments in display-type promotions overall, even if such promotion is less effective. Finally, it is hypothesized that the better the condition of the product, the greater the use of informational promotion since this kind of disclosure is especially influential. The hypotheses were tested using a large data set of auction data from eBay and received excellent support. Implications and directions for future research are discussed.