(Photo : Reuters)

Changes in the rank of billionaires around the globe is a clear manifestation that even the wealthiest people in the world are affected by economic problems and the paradigm shift of business.

The worlds wealthiest is one of the topics that everyone loves to read about. Entrepreneurs and small businessmen around the globe always look forward to the business strategies of the well-known billionaires and observe where and how they invest their money. Through this, they will know what trends are hot in today's market.

Evolution is everywhere and businessmen have already shifted from traditional to modern business strategy. An example of this a newspaper wherefrom its typical black and white paper turned it into an electronic newspaper. Transactions can also be done today through online or e-commerce. These are just two of the major changes in the business market.

This decade the ten billionaires around the world have added an accumulated $555 billion to their fortune. Most of these billionaires are founders or long-term executives and they dominated the decade's headlines. Like Warren Buffet, they have earned largely because of holding positions in those firms. 

There are also instances where heads and officials of the company need to give up their position for the benefit of the growth of the company. An example of this is the former CEO of Microsoft Steve Ballmer who decided to give up his position and named Satya Nadella in 2014 after he saw the lukewarm growth of the company. When he stepped down he said: "I bleed Microsoft-have for 34 years and I always will and the company will move to higher heights. I will be proud, and I will benefit through my shared ownership." 

According to Forbes, 80 percent or more of the world's billionaire gainers are coming from the firms they founded or formerly led. This includes Ballmer, Buffett, Zuckerberg, Bernard Arnault, and Jeff Bezos. Bezos is still the world's number one billionaire behind going through the most expensive divorce in history. 

Here are the 10 billionaire gainers of the decade:

10. Jack Ma, China

Up $40.8 billion 

2019 net worth: $42 billion

2010 net worth: $1.2 billion

Source of wealth: Alibaba

9. Sergey Bin, United States

Up $41.3 billion 

2019 net worth: $58.8 billion

2010 net worth: $17.5 billion

Source of wealth: Alphabet

8. Steve Ballmer, United States

Up $41.8 billion 

2019 net worth: $56.3 billion

2010 net worth: $14.5 billion

Source of wealth: Microsoft 

7. Warren Buffett, United States

Up $41.8 billion

2019 net worth: $88.8 billion

2010 net worth: $47 billion

Source of wealth: Berkshire Hathaway 

6. Larry Page, United States

Up $43.5 billion

2019 net worth: $61 billion

2010 net worth: $17.5 billion

Source of wealth: Alphabet 

5. Amancio Ortega, Spain

Up $49.9 billion

2019 net worth: $74.9 billion

2010 net worth: $25 billion

Source of wealth: Inditex (parent of Zara) 

4. Bill Gates, United States

Up $54.6 billion

2019 net worth: $107.6 billion

2010 net worth: $53 billion

Source of wealth: Microsoft 

3. Mark Zuckerberg, United States

Up $68 billion

2019 net worth: $72 billion

2010 net worth: $4 billion

Source of wealth: Facebook 

2. Bernard Arnault, France

Up $80.2 billion

2019 net worth: $107.7 billion

2010 net worth: $27.5 billion

Source of wealth: LVMH 

1. Jeff Bezos, United States

Up $97.4 billion

2019 net worth: $109.7 billion

2010 net worth: $12.3 billion

Source of wealth: Amazon