How was John Hicks awarded the Noble Prize in Economics?

Name: John Hicks.
Country: United Kingdom.
Date of Birth: 8 April 1904.
Died: 20 May 1989.
Education: United Kingdom.
Subjects Of Study: Business cycle equilibrium.
Known as: Pioneering contributions to general economic equilibrium theory.
Noble Prize Year: Nobel Prize for Peace in 1972, for their pioneering contributions to general economic equilibrium theory and welfare theory.