Buy 3, pay for 2 — use code TRIPLEUS at checkout.
Edwin Mansfield was a professor of economics at University of Pennsylvania from 1964 and until his death. From 1985 he was also a director of the Center for Economics and Technology.
Edwin Mansfield was a professor of economics at University of Pennsylvania from 1964 and until his death. From 1985 he was also a director of the Center for Economics and Technology.
