"Economic theory developed in the prior literature indicates that under the joint and several liability imposed by the federal Superfund statute, the government should recover more of its costs of cleaning up contaminated sites than it would under nonjoint liability, and the amount recovered...

"A long theoretical literature in economics addresses the heavy reliance of the U.S. criminal justice system on very expensive forms of punishment - prison - when cheaper alternatives - such as fines and other sanctions - are available. This paper analyzes the role of fines as a criminal...

"This paper explores the practice of mortgage refinancing in a dynamic competitive lending model with risky borrowers and costly default. We show that prepayment penalties improve welfare by ensuring longer-term lending contracts, which prevents the mortgage pools from becoming...