General principles of bank regulation

Banking regulations can vary widely across nations and jurisdictions. This section of the article describes general principles of bank regulation throughout the world

Minimum requirements
Requirements are imposed on banks in order to promote the objectives of the regulator. The most important minimum requirement in banking regulation is maintaining minimum capital ratios

Supervisory review

Banks are required to be issued with a bank license by the regulator in order to carry on business as a bank, and the regulator supervises licenced banks for compliance with the requirements and responds to breaches of the requirements through obtaining undertakings, giving directions, imposing penalties or revoking the bank's licence.

Market discipline
The regulator requires banks to publicly disclose financial and other information, and depositors and other creditors are able to use this information to assess the level of risk and to make investment decisions. As a result of this, the bank is subject to market discipline and the regulator can also use market pricing information as an indicator of the bank's financial health

Instruments and requirements of bank regulation

Captial requirement
The capital requirement sets a framework on how banks must handle their capital in relation to their assets. Internationally, the Bank for internation Settlement' Basel Commitee on Banking Supervision influences each country's capital requirements. In 1988, the Committee decided to introduce a capital measurement system commonly referred to as the Basel Capital Accords. The latest capital adequacy framework is commonly known as Basel II. This updated framework is intended to be more risk sensitive than the original one, but is also a lot more complex

Reserve requirement

The reserve requirement sets the minimum reserves each bank must hold to demand deposits and banknotes. This type of regulation has lost the role it once had, as the emphasis has moved toward capital adequacy, and in many countries there is no minimum reserve ratio. The purpose of minimum reserve ratios is liquidity rather than safety. An example of a country with a contemporary minimum reserve ratio is Hong Kong, where banks are required to maintain 25% of their liabilities that are due on demand or within 1 month as qualifying liquefiable assets.
Reserve requirements have also been used in the past to control the stock of banknotes and/or bank deposits. Required reserves have at times been gold coin, central bank banknotes or deposits, and foreign currency.