The United Kingdom has the world's sixth-largest economy by nominal gross domestic product (GDP), and the eighth-largest by purchasing power parity. It has a high-income economy and a very high Human Development Index rating, ranking 18th in the world.

The London Stock Exchange Group (LSE) is based in London, United Kingdom. There are four other markets in this country including AIM Stock Exchange, London Metal Exchange, and Aquis Stock Exchange. As of November 2021, the total market value of all companies trading on LSE was £3.9 trillion.

The Bank of England is the UK's central bank and is responsible for issuing notes and coins in the nation's currency, the pound sterling (GBP, £). The GBP is the world's fourth-largest reserve currency (after the US dollar, euro, and Japanese Yen). Since 1997 the Bank of England's Monetary Policy Committee, headed by the Governor of the Bank of England, has been responsible for setting interest rates at the level necessary to achieve the overall inflation target for the economy that is set by the Chancellor each year.