One widely cited study was conducted in the late 1980 's by three economists -- David M. Cutler and Lawrence H. Summers of Harvard -LRB- Mr. Summers is now Harvard 's president -RRB- and James M. Poterba of the Massachusetts Institute of Technology .
James M. Poterba
Massachusetts Institute of Technology
/business/person/company
PERSON
Lawrence H. Summers
ORGANIZATION
Harvard
PERSON
Summers
ORGANIZATION
Harvard
PERSON
James M. Poterba
ORGANIZATION
Massachusetts Institute of Technology