Illegal tying often occurs when a monopolist jointly sells a product with a complementary requirement, also sold competitively. Along with selling the complement at its competi tive price, this paper shows that profit can increase when a monopoli st lets consumers bundle any amount of the...

The authors consider an imperfect test of product quality and ask how it interacts with adverse selection to affect market size. Although one might expect adverse selection to be mitigated, there are scenarios where it is exacerbated. Also, two counterintuitive comparative static results emerge....

The authors analyze a common property resource model with a single incumbent firm that faces future potential entry of a rival. The cost of harvest from the resource is a function of the stock size. By drawing down current stock sufficiently, which lowers future stock, the incumbent can make...

We model how public undergraduate universities alter acceptance and retention rates due to changes in tuition and enrollment-based subsidies. Per student subsidies differ for senior and freshman students, as is true in most states. The university accepts students from an applicant pool which is...