How was James Meade awarded the Noble Prize in Economics?

Name: James Meade.
Real Name: James Edward Meade.
Country: United Kingdom.
Date of Birth: 23 June 1907.
Died: 25 December 1997.
Education: Malvern College and Oriel College at Oxford.
Subjects Of Study: International trade balance of payments.
Popularly Known: The Theory of International Economic Policy.
Noble Prize Year: Nobel Prize for Peace in 1977, for their pathbreaking contribution to the theory of international trade and international capital movements.