Category: Economics

➤ When should governments prefer fiscal policy over monetary policy?
Governments usually use fiscal policy when interest rates are near zero or monetary policy has limited impact, such as during a liquidity trap. They also choose fiscal action for targeted needs like infrastructure, social protection, or redistribution. Fiscal measures can deliver direct demand stimulus and fund long-term supply-side investments.

➤ When would the quantity supplied fall instead of rise?
Quantity supplied falls when the market price drops below the current level, reducing producer incentives. It also falls if production costs rise or firms exit the market. In the short run, producers cut back output in response to lower prices; in the long run, persistent low prices lead to capacity reduction or business closure.

➤ Why does a country develop a trade surplus?
A trade surplus arises when domestic producers sell competitively priced or high-demand goods internationally. Key factors include comparative advantage, low production costs, favorable exchange rates, strong export industries, and high foreign demand. Government policies like export promotion or import restrictions can also increase exports relative to imports.

➤ How do you calculate the real interest rate from a nominal rate?
Use the Fisher equation. For small rates, approximate real ≈ nominal − inflation. For exact conversion compute real = (1 + nominal) / (1 + inflation) − 1. Use expected inflation or a CPI-based rate to estimate the inflation-adjusted, purchasing-power return on a loan or investment.

How does the United States or any nation pay for its national defense?