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Fiscal policy

Fiscal policy shapes aggregate demand, public services, distribution and long-run productive capacity through government spending, taxation, transfers and borrowing.

Entry type: Knowledge article

Field: Macroeconomics

Last reviewed: 24 August 2026

Definition

Fiscal policy is the government's use of expenditure, taxation, transfers and financing to provide public goods, redistribute resources, influence economic activity and manage the public balance sheet.

Functions

Allocation

  • Public goods and services
  • Infrastructure
  • Correction of externalities

Distribution

  • Progressive taxation
  • Income transfers
  • Social insurance

Stabilization

  • Countercyclical spending
  • Automatic stabilizers
  • Emergency support

Fiscal stance

Expansionary policy raises demand through higher spending, lower taxes or larger transfers; contractionary policy works in the opposite direction. The observed budget balance does not by itself reveal policy intent because recessions automatically reduce revenue and raise some expenditures. Economists therefore distinguish headline balances from cyclically adjusted or structural measures.

Transmission and multipliers

FactorTends to strengthen impactTends to weaken impact
Economic slackIdle labour and capacityBinding supply constraints
Monetary responseAccommodative financial conditionsOffsetting interest-rate increases
OpennessDomestic supply responseHigh leakage into imports
InstrumentTargeted transfers or executable investmentDelayed or poorly designed measures

Debt sustainability

Public debt dynamics depend on the starting debt ratio, primary budget balance, effective interest rate, nominal economic growth, currency composition and investor confidence. Debt can finance productive investment and crisis response, but persistent financing needs can narrow future choices. Sustainability is therefore an assessment of a government's capacity and willingness to meet obligations under plausible conditions, not a universal numerical threshold.

Sources and further reading

View sources and editorial notes
  • International Monetary Fund, Fiscal Monitor and fiscal-policy resources.
  • OECD, public-finance and fiscal-policy analysis.
  • World Bank, debt sustainability and public-expenditure resources.

Editorial note: Fiscal capacity, accounting conventions and institutional responsibilities differ across jurisdictions. This entry is informational and does not assess any particular government's finances.