The annual earnings of the companies in the 15- year period was about 18% compared to 9% for a broad stock index that tracks shares in 47 countries. Billionaire-controlled companies are increasingly profitable.
"The outperformance we call the & # 39; billion dollar impact & # 39; depends on maintaining business control, regardless of whether the business is public or private," the report said.
What makes a billionaire specialists
Billionaire entrepreneurs have a "positive attitude," focusing on the risks it understands and reduces. They are also constantly looking for opportunities and are "undefined by failures and roadblocks," it said.
"Billionaire businesses tend to pursue a long-term strategy that will benefit from a rare alignment between performance and management incentives," the report added.
It has been found that close to 27 million jobs may be directly or indirectly linked to billionaire controlled billionaires.
Billionaire's wealth sinks in 2018
After years of growth, the "billions of booms" experienced a "natural correction" in 2018 to a stronger dollar , market volatility and economic weakness, said Josef Stadler, an executive at UBS Global Wealth Management.
The number of billions has dropped to 57, with sharp declines in China and India. . Only americans have advanced the trend, lifted by the fortunes of tech entrepreneurs in the US. There were 89 billion US tech by the end of 2018, up from 70 in 2017.
Billionaires ended in 2018 nearly 35% richer than five years before, owning a combined $ 8.5 trillion in assets. The number of billions of women increased by 46% during the same time period to reach 233, but that was only 11%.
Tech is king
The net wealth of tech entrepreneurs has almost doubled. over five years to $ 1.3 trillion, with the number of billionaire-controlled techs rising from 76 to 148.
Ten of the world's top 20 million billionaires are from the United States and four are from China, including ByteDance founder Zhang Yiming.
Industrial traders saw their wealth plummet by 15% to less than $ 609 billion against a backdrop of declining commodity prices.
Billions seeking to grow their wealth increasingly approve direct private investment in listed equity markets, said Simon Smiles, an executive at UBS Global Wealth Management.