Overview
A billionaire is a person with a net worth of at least one billion (1,000,000,000, i.e., a thousand million) units of a given currency, usually of a major currency such as the United States dollar, euro, or pound sterling. It is a sub-category of the concept of the ultra high-net-worth individual. The American business magazine Forbes produces a global list of known U.S. dollar billionaires every year and updates an internet version of this list in real time. The American oil magnate John D. Rockefeller became the world's first confirmed U.S. dollar billionaire in 1916.
there are over 2,200 U.S. dollar billionaires worldwide, with a combined wealth of over US$9.1 trillion, up from in 2017. According to a 2017 Oxfam report, the top eight richest billionaires own as much combined wealth as "half the human race". As of 2021, eight people have reached the status of USD centibillionaires, meaning that each has had a net worth of at least $100 billion.
Current U.S. dollar billionaires
According to the UBS/PwC Billionaires Report 2019 report released in November 2019, there are currently 2,101 U.S. dollar billionaires worldwide, from 66 countries, with a combined net worth of $8.5 trillion. Also according to the report, billionaires have a substantial positive impact on the sustainability and success of companies controlled by them. Billionaire-controlled companies listed on the equity market returned 17.8 percent, compared with the 9.1 percent of the MSCI AC World Index. According to the authors of the report, this Billionaire Effect is connected with smart risk-taking and willingness to plan and invest for the long term.
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