The research activities of the NBER are organized into a series of twenty research programs and thirteen working groups. Each is led by a director, or a pair of co-directors. Research programs correspond loosely to traditional fields of study within the field of economics, and they encompass a wide range of research within such fields. Virtually all NBER researchers are affiliated with one or more research programs. The researchers in most programs meet twice each year, at program meetings, and in addition participate in the NBER Summer Institute meetings. The link for each program in the list below will direct you to the most recent summary of research by program members.