b) Paul Samuelson
Paul Samuelson was the first American to win the Nobel Prize in Economics, awarded to him in 1970. Samuelson was recognized for his contributions to economic science, particularly his work in developing the neoclassical synthesis, which integrated Keynesian and classical economics. His influential textbook, “Economics: An Introductory Analysis,” introduced generations of students to economic concepts and theories. Samuelson’s work had a profound impact on economic thought and policy, making him one of the most important economists of the 20th century.