This paper considers a sequential screening problem. A seller sells an object to a buyer who is privately informed about the object's value. The value has two components. The buyer knows the first component when he contracts with the seller and learns the second component only later. The optimal...

The present paper suggests a possible framework to analyze the impact of changes to the economic and social environment on the topology of networks formed. Economic (costs) and social (norms) constraints bind individuals in their ability to create ties with others. When global phenomena affect...