Question : The concept of "human capital" was first introduced by:
Option 1: Adam Smith
Option 2: John Maynard Keynes
Option 3: Amartya Sen
Option 4: Gary Becker
Correct Answer: Gary Becker
Solution : The correct answer is (d) Gary Becker.
Gary Becker, an American economist, is credited with pioneering the concept of human capital in the field of economics. He developed the idea in the 1960s and expanded on it in his influential book titled "Human Capital: A Theoretical and Empirical Analysis," published in 1964.
Becker's contribution to the concept of human capital has had a significant impact on the field of economics and has influenced subsequent research and policy discussions related to education, labor markets, and economic development.