11. Who is known for the concept of “creative destruction” in economics?
a) Joseph Schumpeter
b) Karl Marx
c) John Kenneth Galbraith
d) Milton Friedman
12. Who is considered the founder of modern microeconomics?
a) Paul Krugman
b) John Maynard Keynes
c) Vilfredo Pareto
d) Friedrich Hayek
13. Which economist is known for the theory of “liquidity preference”?
a) John Maynard Keynes
b) Adam Smith
c) Friedrich Hayek
d) Paul Samuelson
14. Who is known for the concept of “marginal utility” in economics?
a) Ludwig von Mises
b) Vilfredo Pareto
c) John Stuart Mill
d) Jeremy Bentham
15. Who developed the theory of “perfect competition” in economics?
a) Alfred Marshall
b) Joseph Schumpeter
c) John Maynard Keynes
d) Thomas Malthus