Political contributions appear to be subject to an obvious public goods problem. Free riding might be expected to lead to polarization of contributions. We show that it is not true in general. In fact, in the most obvious model, with arbitrary number of candidates, we get a median contributor...

Consumer bankruptcy has increased more than 4-fold since 1980. Livshits, MacGee, and Tertilt (2006) show that a decline in the social stigma of bankruptcy together with a decline in the transactions cost of borrowing can account for both increased filings and increased unsecured borrowing by...