mergers and acquisitions and also engage in investment banking activities. Financial services continued to grow through the 1980s and 1990s as a result of a great increase in demand from companies, governments, and financial institutions, but also because financial market conditions were buoyant and, on the whole, bullish. Interest rates in the United States declined from about 15% for two-year U.S. Treasury notes to about 5% during the 20-year period, and financial assets grew then at a rate approximately twice the rate of the world economy. This period saw a significant internationalization of financial markets. The increase of U.S. Foreign investments from Japan not only provided the funds to corporations in the U.S., but also helped finance the federal government. The dominance of U.S. financial markets was disappearing and there was an increasing interest in foreign stocks. The extraordinary growth of foreign financial markets results from both large increases in the pool of savings in foreign countries, such as Japan, and, especially, the deregulation of foreign financial markets, which enabled them to expand their activities. Thus, American corporations and banks started seeking investment opportunities abroad, prompting the development in the U.S. of mutual funds specializing in trading in foreign stock markets. Such growing internationalization and opportunity in financial services changed the competitive landscape, as now many banks would demonstrate a preference for the "universal banking" model prevalent in Europe. Universal banks are free to engage in all forms of financial services, make investments in client companies, and function as much as possible as a "one-stop" supplier of both retail and wholesale financial services. 21st century The early 2000s were marked by consolidation of existing banks and entrance into the market of other financial intermediaries: non-bank financial institution. Large corporate players were beginning to find their way into the financial service community, offering competition to established banks. The main services offered included insurance, pension, mutual, money market and hedge funds, loans and credits and securities. Indeed, by the end of 2001 the market capitalisation of the world's 15 largest financial services providers included four non-banks. The first decade of the 21st century saw the culmination of the technical innovation in banking over the previous 30 years and saw a major shift away from traditional banking to internet banking. Starting in 2015 developments such as open banking made it easier for third parties to access bank transaction data and introduced standard API