Auctions with Dynamic Costly Information Acquisition
研究了卖家在买家可付费获取额外信息时的最优和有效机制，发现并非所有买家都会获取信息，只有初始估值高的买家才有激励去获取。
We study the mechanism design problem for a seller of an indivisible good in a setting where privately informed buyers can acquire additional information and refine their valuations for the good at a cost. For this setting, we propose optimal (revenue-maximizing) and efficient (welfare-maximizing) mechanisms that induce a right level of investment in information acquisition. We show that because information is costly, in the optimal and even the efficient mechanisms, not all buyers would obtain the additional information. In fact, these mechanisms incentivize buyers with higher initial valuations to acquire information.