In the early 1960s he worked at Continental Oil Company .
Besides the University of Pennsylvania , the University of Tennessee , and the New School , Davidson has taught economics at Rutgers University , Bristol University , and the University of Cambridge .
In the early 1960s Davidson worked at Continental Oil Company .
Besides the University of Pennsylvania , the University of Tennessee , and the New School , Davidson has taught economics at Rutgers University , Bristol University , and the University of Cambridge .