Category: Economics

➤ Why doesn’t a perfectly competitive market always need government intervention to be efficient?
Under perfect competition, decentralized decisions push price to marginal cost and firms operate at minimum average cost, delivering allocative and productive efficiency without intervention. This outcome requires assumptions like no externalities, perfect information, and free entry. If those assumptions fail, targeted policies or regulation can improve outcomes.

➤ How does the Fed implement inflation targeting in practice?
The Fed uses the federal funds rate, forward guidance, and balance-sheet operations to steer inflation toward 2 percent. The Open Market Desk executes rate policy through asset purchases or sales. The Fed also communicates its outlook to shape expectations and uses quantitative easing when short-term rates hit the effective lower bound.

what are the successes of the ndp in the education sector in south africa?

➤ How does ceteris paribus affect interpretation of price changes versus shifts?
Use ceteris paribus to distinguish movements along curves from shifts. A price change, ceteris paribus, gives a movement along a demand or supply curve. A change in income, production costs, tastes, or expectations shifts the entire curve. This distinction guides correct graphical and algebraic interpretation of market responses.

➤ Why does allocative efficiency require marginal benefit to equal marginal cost?
Because equalizing marginal benefit and marginal cost ensures resources move to their highest-valued uses. If MB exceeds MC, producing more increases net benefit; if MC exceeds MB, reducing output raises welfare. The MB = MC rule prevents wasted gains from reallocation and guarantees that each extra unit adds as much value as it costs.

Which of these is synonymous with “niche”?
cost
differentiation
focus
strategy