Jan
Tinbergen

Erasmus University


Hendrik Antonie
Kramers

Leiden (Physics Tree)






?


Melvin J.
Hinich

UT Austin (MathTree)


Peter C
Ordeshook

Caltech (PoliSci Tree)

Yan
Chen

University of Michigan
(Options)

Kan
Takeuchi

University of Michigan

Yan ChenX