Civic · 6 pages · 12 min

Why a deficit is a flow and a debt is a stock

A deficit is the gap over a period of time, while debt is the amount still owed at a given date.

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From the opening

A deficit is a flow, meaning that over a month or a year the spending being counted exceeds the revenue being counted for that same period. Debt is a stock, meaning that on a particular date it is the outstanding borrowing that has not yet been repaid. The opening covers a period gap is not a balance, borrowing turns the flow into stock, and reserves can cover a gap.

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Inside

  • A period gap is not a balance
  • Borrowing turns the flow into stock
  • Reserves can cover a gap
  • A smaller deficit can still add debt
  • Where the idea stops applying
  • A distinction worth keeping

Sources

  • Budget deficit as a flow
  • Outstanding public debt as a stock