Edward Ullman

Edward Louis Ullman (1912 – 1976), son of classical scholar Berthold Ullman,[1] was trained as a geographer at University of Chicago where he was influenced by the urban and economic emphasis in social science.

He was an urban geographer, transportation researcher and regional development specialist and became the champion of applied geography.

He was the Office of Strategic Services transportation specialist in World War II.

The Nuclear Regulatory Commission and Amtrak utilized his services in their formative years.

[4] He proposed that trade was an interaction based on three phenomena: complementarity, intervening opportunities, and transferability of commodities.