One most conspicuous and curious phenomenon in online auctions is that a large fraction of goods sold have posted price clauses whereby bidders can buy the goods without taking part in the auctions. Two types of posted price clauses exemplified by Amazon and eBay are found. The paper first...

It is well-known that the ability of the Vickrey-Clarke-Groves (VCG) mechanism to implement efficient outcomes for private value choice problems does not extend to interdependent value problems. When an agent's type affects other agents' utilities, it may not be incentive compatible for him to...

It is well-known that the ability of the Vickrey-Clarke-Groves (VCG) mechanism to implement efficient outcomes for private value choice problems does not extend to interdependent value problems. When an agent's type affects other agents' utilities, it may not be incentive compatible for him to...

We study efficient auction design for a single indivisible object when bidders have interdependent values and non-quasilinear preferences. Instead of quasilinearity, we assume only that bidders have positive wealth effects. Our setting nests cases where bidders are ex ante asymmetric, face...

Government mandated technology transfers from the developer of a product to a second source offer a potential gain of reduced information rents and procurement costs. To provide appropriate incentives, technology must sometimes be transferred even when the second source is less efficient than...

I analyze private value auction design and assume only that bidders are risk averse and have positive wealth effects (i.e. the good is normal). I show removing the standard quasilinearity restriction leads to qualitatively different solutions to the auction design problem with respect to both...

It is well-known that the ability of the Vickrey-Clarke-Groves (VCG) mechanism to implement efficient outcomes for private value choice problems does not extend to interdependent value problems. When an agent's type affects other agents' utilities, it may not be incentive compatible for him to...

I study the canonical private value auction model for a single good without the quasilinearity restriction. I assume only that bidders are risk averse and the indi- visible good for sale is a normal good. I show that removing quasilinearity leads to qualitatively different solutions to the...

Poor user experiences with search advertisements can lead to ad avoidance thus reduce search engine’s long-term revenue. We capture the effect of negative user experiences on search engine’s future revenue in a new variable called “shadow costs” and examine the optimal keyword auction...