Karl
Knies

University of Heidelberg (History of History Tree)


Johann Kaspar
Bluntschli

Universität München (History of History Tree)


Richard T.
Ely

UW Madison (History of History Tree)


Richard T.
Ely

UW Madison (History of History Tree)


John R.
Commons

UW Madison (History of History Tree)


John Bach
McMaster

Penn (History of History Tree)


Albert Bushnell
Hart

Harvard (History of History Tree)


Frederic L.
Paxson

(History of History Tree)


Alvin Harvey
Hansen

Harvard (Econometree)


Evsey David
Domar

MIT (Econometree)

Phoebus J.
Dhrymes

Columbia
(Options)

Phoebus DhrymesX