A budget-constrained buyer wants to purchase items from a shortlisted set. Items are differentiated by observable quality and sellers have private reserve prices for their items. The buyer's problem is to select a subset of maximal quality. Money does not enter the buyer's objective function,...

This article investigates bid updating and subject learning in experimental initial public offers (IPO) of stock pricing methods. A clock auction stands for the "Dutch auction". A sealed-bid uniform price auction represents "book building". A two-stage "book building" emulation represents a...