He received a bachelor's degree in mathematics from Princeton University, then entered the Peace Corps, serving in Afghanistan.
[1][2] He taught at Princeton and the University of Kansas, joining the faculty of Rutgers Business School – Newark and New Brunswick in 1992.
It is a general framework for reasoning with uncertainty, allowing one to combine evidence from different sources and arrive at a degree of belief (represented by a mathematical object called belief function) that takes into account all the available evidence.
[4] More recently he worked with Vladimir Vovk to develop a game-theoretic framework for probability.
A joint research group between Rutgers and Royal Holloway, University of London has produced more than 50 working papers on the subject.