31. Who is known for the theory of “creative destruction” in economics?
a) Joseph Schumpeter
b) Karl Marx
c) John Kenneth Galbraith
d) Milton Friedman
Answer: a) Joseph Schumpeter
32. Who is considered the founder of modern microeconomics?
a) Paul Krugman
b) John Maynard Keynes
c) Vilfredo Pareto
d) Friedrich Hayek
Answer: c) Vilfredo Pareto
33. Which economist is known for the theory of “liquidity preference”?
a) John Maynard Keynes
b) Adam Smith
c) Friedrich Hayek
d) Paul Samuelson
Answer: a) John Maynard Keynes
34. 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
Answer: c) John Stuart Mill
35. Who developed the theory of “perfect competition” in economics?
a) Alfred Marshall
b) Joseph Schumpeter
c) John Maynard Keynes
d) Thomas Malthus
Answer: a) Alfred Marshall