Government Debt and Deficits

Government debt and deficits are the most discussed and least understood topics in public economics. The conventional view treats government debt as a burden, deficits as evidence of overspending, and balanced budgets as the hallmark of fiscal responsibility. The sectoral balances framework, functional finance, and decades of empirical evidence show that every one of these claims is either misleading or outright wrong for a country that issues its own currency.

The sectoral balances identity, formalised by Wynne Godley, establishes that the government's financial balance is the mirror image of the non-government sector's balance. A government deficit means the government has spent more into the economy than it has taxed out, leaving the difference as net financial assets in the private sector. Government debt is simply the cumulative record of these net additions. Treasury bonds, often described as "debt," are financial assets held by pension funds, banks, foreign governments, and individual savers. They are the private sector's savings in government securities.

Abba Lerner's principle of functional finance, articulated in the 1940s, argues that fiscal policy should be judged not by its effect on the government's balance sheet but by its effect on the economy. Deficits are appropriate when the economy is below full employment. Surpluses may be appropriate when inflation is rising. The budget balance is a tool, not a target. Debt sustainability frameworks used by institutions like the IMF assume that currency-issuing governments face the same solvency constraints as households or eurozone member states. They do not. Japan's experience, with debt exceeding 250% of GDP, near-zero interest rates, and no solvency crisis, is the definitive empirical refutation of mainstream debt sustainability analysis.

The research collected here covers the sectoral balances approach to deficits, functional finance, the political economy of austerity, and empirical studies of government debt in currency-issuing countries. This evidence base is essential for anyone challenging the deficit myths that dominate public debate and policy making.