We explore the inter-temporal effects of the pool externalities caused by imperfect screening in competitive credit markets. We find that imperfect screening may, depending on the parameters of the model, generate excessive screening, inefficient duplication of screening or screening cycles....

We construct an overlapping generations growth model, where young consumers choose how to allocate resources among real investment (deposits), acquisition of bank ownership, and young-age consumption. At old age, consumers sell bank ownership and collect their bank deposits to support...

In October 2011, new rules governing debit card interchange fees became effective in the United States. These rules limit the maximum permissible interchange fee that an issuer can charge merchants for a debit card transaction. This paper provides simple calculations that identify the...