American economist Thomas Sargent takes a phone call while seated on a train in New York Monday, Oct. 10, 2011, shortly after learning that he and fellow American Christopher Sims had won the Nobel ... more 
American economist Thomas Sargent takes a phone call while seated on a train in New York Monday, Oct. 10, 2011, shortly after learning that he and fellow American Christopher Sims had won the Nobel Prize for Economics. Sargent, a professor at New York University, was heading to Princeton, N.J., where he teaches a class at Princeton University. Sargent and Sims won the Nobel economics prize on Monday for research that sheds light on the cause-and-effect relationship between the economy and policy instruments such as interest rates and government spending. (AP Photo/Mark Lennihan) less 
1 / 1
Associated Press | Photo By Mark Lennihan
Mon, Oct 10, 2011 8:48 AM EDT