Which description best captures the idea of supply-side economics?

Which description best captures the idea of supply-side economics?

• A. Policies aimed at increasing government spending.
• B. Policies aimed at increasing potential output by shifting the long-run aggregate supply curve (e.g., tax cuts on investment, deregulation).
• C. Policies to reduce government debt.
• D. Policies to manage exchange rates.

Answer: (B)

Supply-side economics centers on boosting the economy’s productive capacity. The idea is to shift the long-run aggregate supply (LRAS) curve to the right by policies that make investment, production, and innovation cheaper or easier. Tax cuts on investment reduce the cost of capital and encourage firms to invest, expand capacity, and adopt new technologies. Deregulation lowers compliance and operating barriers, boosting efficiency and productivity. When LRAS shifts right, potential output rises, meaning the economy can produce more in the long run without necessarily driving up prices. The other descriptions describe effects on demand, debt management, or exchange-rate policy, not the economy’s capacity to produce. So describing policies that raise potential output by shifting the LRAS curve, through investment-friendly tax cuts and deregulation, best captures the idea of supply-side economics.

Supply-side economics centers on boosting the economy’s productive capacity. The idea is to shift the long-run aggregate supply (LRAS) curve to the right by policies that make investment, production, and innovation cheaper or easier. Tax cuts on investment reduce the cost of capital and encourage firms to invest, expand capacity, and adopt new technologies. Deregulation lowers compliance and operating barriers, boosting efficiency and productivity. When LRAS shifts right, potential output rises, meaning the economy can produce more in the long run without necessarily driving up prices.

The other descriptions describe effects on demand, debt management, or exchange-rate policy, not the economy’s capacity to produce. So describing policies that raise potential output by shifting the LRAS curve, through investment-friendly tax cuts and deregulation, best captures the idea of supply-side economics.