Supply-side fiscal policy

Supply-side fiscal policy focuses on the production side of the economy. Its central claim is that output grows when the people who create goods and services face better incentives, so the policy toolkit emphasizes cutting marginal tax rates on income and capital, reducing regulatory burdens, and offering investment incentives such as accelerated depreciation.

The reasoning runs through incentives rather than spending. If a business keeps more of each additional dollar it earns, it has more reason to expand capacity and hire; if workers keep more of each additional hour's pay, they have more reason to work. Supply-siders argue that the resulting growth in the tax base can partially offset the revenue lost to lower rates — the idea behind the Laffer curve. Critics counter that the growth effects are usually smaller than predicted and that the shortfall shows up as larger deficits.

The contrast is with demand-side (Keynesian) fiscal policy, which stimulates the economy by boosting aggregate demand through government spending, transfer payments, or tax cuts aimed at consumers who will spend them. Both are fiscal policy — they work through taxing and spending decisions made by Congress and the President — as distinct from monetary policy, which the Federal Reserve conducts through interest rates and the money supply.

On the Series 65 and Series 66, economic factors questions ask you to sort policy actions into the right bucket. Know that anything involving tax rates or government spending is fiscal policy, that supply-side measures target producers and demand-side measures target consumers, and that changes to the discount rate, reserve requirements, or open market operations belong to the Fed and are monetary policy instead.