In two decades, three momentous changes have occurred that will influence power generation for decades to come. Coal has become a culprit responsible for respiratory disease and acid rain; carbon dioxide has become a culprit widely believed capable of changes in climate greater than any that...

Nobel Prize Lecture, December 8, 2005

People have difficulty governing certain of their own behaviors, and employ strategies to constrain future choices. These efforts can be interpreted as rational attempts to cope with some foreseeable lapse from full rationality. The philosophy literature and a small amount of recent economics...

A pencil-and-paper experiment with spacial segregation leads to some general phenomena of spatial organization.