MTTC MTTC Economics 4 — Questions and Answers
Question 1: Which Federal Reserve tool is considered the most frequently used instrument of monetary policy?
- Changing the reserve requirement ratio
- Conducting open market operations (Correct answer)
- Adjusting the discount rate
- Issuing Treasury bonds
Correct answer: Conducting open market operations
Open market operations — buying and selling U.S. government securities — are the Fed's primary and most frequently used tool for controlling the money supply and interest rates.
Question 2: A negative externality exists when:
- A firm's production generates costs borne by third parties not involved in the transaction (Correct answer)
- A firm earns negative economic profits
- Consumers derive less utility than the price they pay
- A public good is underproduced by the market
Correct answer: A firm's production generates costs borne by third parties not involved in the transaction
Negative externalities occur when production or consumption imposes costs on uninvolved third parties, causing the social cost to exceed the private cost and leading to market overproduction.
Question 3: In a perfectly competitive market, a firm's demand curve is:
- Downward sloping like the market demand curve
- Upward sloping, reflecting rising marginal costs
- Perfectly elastic (horizontal) at the market price (Correct answer)
- Inelastic because consumers have no substitutes
Correct answer: Perfectly elastic (horizontal) at the market price
A perfectly competitive firm is a price taker, so it faces a perfectly elastic horizontal demand curve at the prevailing market price — it can sell any quantity at that price.
Question 4: Which economic concept refers to the additional satisfaction gained from consuming one more unit of a good?
- Total utility
- Average utility
- Marginal utility (Correct answer)
- Consumer surplus
Correct answer: Marginal utility
Marginal utility is the additional satisfaction (utility) a consumer receives from consuming one additional unit of a good or service.
Question 5: Stagflation, which plagued the U.S. economy in the 1970s, is best described as a period of:
- Rapid economic growth with accelerating inflation
- High inflation combined with high unemployment and slow growth (Correct answer)
- Deflation caused by falling consumer demand
- Low interest rates and rising asset prices
Correct answer: High inflation combined with high unemployment and slow growth
Stagflation combines stagnant economic growth, high unemployment, and high inflation simultaneously — a combination that challenged traditional Keynesian policy prescriptions.
Question 6: Which of the following is an example of a public good?
- A toll road with limited access
- A movie streamed on a subscription platform
- National defense (Correct answer)
- A congested city park
Correct answer: National defense
National defense is non-excludable (you cannot prevent anyone from being protected) and non-rival (one person's protection does not reduce another's), making it a pure public good.
Question 7: The long-run Phillips Curve is best described as:
- A downward-sloping curve showing the trade-off between inflation and unemployment
- A vertical line at the natural rate of unemployment, indicating no long-run trade-off (Correct answer)
- An upward-sloping curve showing higher inflation leads to more unemployment
- A horizontal line indicating inflation is independent of unemployment in the long run
Correct answer: A vertical line at the natural rate of unemployment, indicating no long-run trade-off
In the long run, the Phillips Curve is vertical at the natural rate of unemployment because workers and firms adjust expectations, eliminating any lasting trade-off between inflation and unemployment.
MTTC MTTC Economics 4
Which Federal Reserve tool is considered the most frequently used instrument of monetary policy?