Independent central bank

An independent central bank has legal or institutional protections that limit direct political control over its monetary-policy decisions. Its autonomy can vary across policy goals, instruments, appointments, and finances.

Central bank: A public institution that manages a country's currency, monetary policy, and often its banking system. Independence describes how much political control this institution has over its decisions.
Time inconsistency: A situation in which a policy that is optimal now becomes undesirable after expectations or circumstances change. It explains why governments may promise low inflation and later have incentives to create surprise inflation.
Central bank subordination: An arrangement in which a central bank must follow or accommodate government policy directives. It represents the direct political control that institutional independence limits.
Central bank independence index: A measure that scores central banks using legal or observed features of their autonomy. Indices turn appointment, mandate, and policy rules into comparable measures of independence.
Credibility (monetary policy): The degree to which the public believes a central bank will carry out its stated policy commitments. Insulation from short-term political pressure can make policy commitments more believable.
Monetary policy: Central-bank actions that influence interest rates, credit conditions, and the money supply. Independent central banks exercise discretion over these policy choices.
Inflation bias: A persistent tendency for policy to produce inflation above the level consistent with its long-run objectives. Delegating policy to an insulated authority is proposed as a way to limit this bias.
Fiscal dominance: A condition in which fiscal needs constrain monetary policy, often by pressuring the central bank to finance government debt. It can undermine formal independence even when legal safeguards remain in place.
Inflation targeting: A monetary-policy framework in which a central bank publicly specifies an inflation goal and explains its decisions. It pairs operational autonomy with an explicit, assessable policy objective.
Democratic deficit: A perceived gap between public control over decisions and the authority exercised by institutions. Independent monetary decisions can raise concerns about unelected officials wielding economic power.

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