What is the difference between government debt and the budget deficit?

What is the difference between government debt and the budget deficit?

• A. Government debt is what the government owes; the budget deficit is the shortfall between government income and expenditure
• B. Government debt equals annual budget deficit
• C. Budget deficit equals total debt outstanding
• D. Government debt is internal to the private sector

Answer: (A)

The difference hinges on stock versus flow. Government debt is the total amount the government currently owes to lenders—the accumulated borrowings outstanding at a point in time. The budget deficit is a flow: the shortfall between what the government takes in revenue and what it spends in a given year. When a deficit occurs, the government typically borrows to cover the gap, so that year's borrowing adds to the overall debt. Over time, repeated deficits (or surpluses) determine how the debt evolves. If a year runs a surplus, debt can be reduced, though that depends on the size of past borrowings and other factors. Debt is not confined to being internal to the private sector; it can be held by private sector, the central bank, or foreign creditors. What matters for the concept is that debt is the stock of obligations, while the deficit is the yearly gap that can lead to changes in that stock.

The difference hinges on stock versus flow. Government debt is the total amount the government currently owes to lenders—the accumulated borrowings outstanding at a point in time. The budget deficit is a flow: the shortfall between what the government takes in revenue and what it spends in a given year.

When a deficit occurs, the government typically borrows to cover the gap, so that year's borrowing adds to the overall debt. Over time, repeated deficits (or surpluses) determine how the debt evolves. If a year runs a surplus, debt can be reduced, though that depends on the size of past borrowings and other factors.

Debt is not confined to being internal to the private sector; it can be held by private sector, the central bank, or foreign creditors. What matters for the concept is that debt is the stock of obligations, while the deficit is the yearly gap that can lead to changes in that stock.