Rejoinder--Causes and Implications of Some Bidders Not Conforming to the Sealed-Bid Abstraction

This paper presents the authors' rejoinder to Zeithammer and Adams [Zeithammer, R., C. Adams. 2010. The sealed-bid abstraction in online auctions. Marketing Sci. 29(6) 964-987]. This rejoinder clarifies and qualifies conclusions of the original paper and makes suggestions for fruitful areas of future research. In particular, the original paper shows that bidding style can make a big difference in managerial decisions, but a structural model would be necessary to make confident predictions under different reserve prices. The rejoinder also clarifies the interpretation of feedback as a measure of bidder experience, and the relationship between bidder experience and bidding style.