A bank which controls a country's money supply and monetary policy. It acts as a banker to other banks, and a lender of last resort. In some countries, including the UK, the central bank is also the main regulator of other banks. Any central bank is ultimately controlled by a country's political system; whether central bankers should be controlled by the current government, or should be independent is controversial.

• borrowing
• borrowing, consumer
• Borrowing Requirement, Public Sector
• bottleneck
• bottom line
• bound
• boundary, production possibility
• bounded rationality
• Bowley box
• box diagram
• boycott
• BP curve
• Brady Plan
• brain drain
• branch banking
• brand
• brand loyalty
• Brandt Report
• break-even
• break-up value
• Bretton Woods
• broad money
• broker
• brokerage
• bubble