This paper describes open research questions related to the competition and market structure of financial exchanges and argues that only a combination of industrial organization and finance can satisfactorily attack these questions. Two examples are discussed to illustrate how the combination of...

A structured market for a product category is a pair (, ) consisting of a set of consumers who have the same decision tree, , which reflects the process by which the consumers in evaluate product features when making choices. Using a nested logit approach: (1) we present methods to test for the...