"Ph.D. in Economics" . "65" . "300" . "Department of Economics" . . "Departments of Economics" . . "Hughes-Rogers Professor of Economics" . . . . . . "Princeton University Department of Economics" . "Walker Professor of Economics and International Finance" . "Princeton's Department of Economics" . "141" . . "Princeton University's Department of Economics" . "Princeton University" . . . "Edwards S. Sanford professorship" . . "Professor of Economics" . "Edwards S. Sanford Professor" . "department of economics" . . "Princeton University Department of Economics" . . "Professor of Economics at Princeton University" . "John H. Laporte, Jr. Class of 1967 Professor of Economics, Public Policy and Finance" . "Economics" . . . "Princeton's department of economics" . .