The Cayman Islands is an Overseas Territory of the United Kingdom, consistently recognised as being in the top-ten international banking centres, and the top-ten international financial centres, with over 40 of the largest 50 global financial institutions holding licenses in the Cayman Islands under the supervision of the Cayman Islands Monetary Authority (CIMA), which strives to uphold and maintain the highest international standards of financial services regulation to keep the Cayman Islands’ position as one of the Earth’s premier international financial centres. The primary source of revenue for the Cayman Islands government is indirect taxation: there is no income tax, capital gains tax, or corporation tax. According to the CIA World Factbook, Caymanians enjoy a standard of living comparable to that of Switzerland, and international finance is the second-highest source of employment (after tourism) in the Cayman Islands.