Lifestyle: Business - Forbes' top 10 billionaires in 2013

1. Carlos Slim ($73 billion). Mexican businessman Carlos Slim listens during a news conference after the inauguration of a new research facility at the International Maize and Wheat Improvement Center, or CIMMYT, in Texcoco outside Mexico City in this file photo from February 13, 2013. Slim, who has taken a hit from the slump in the share price of his America Movil telecoms group since the list was calculated as of Feb. 14, remained the richest ...more 

2. Bill Gates ($67 billion). Microsoft founder and philanthropist Bill Gates listens alongside Mexican businessman Carlos Slim (not pictured) during a news conference after taking part in the inauguration of a new research facility at the International Maize and Wheat Improvement Center, or CIMMYT, in Texcoco outside Mexico City in this file photo from February 13, 2013. Gates held on to his spot as the world's second richest person on Forbes' ...more 

3. Amancio Ortega ($57 billion). Amancio Ortega, chairman of Spanish global fashion group Inditex, laughs during a visit of Spain's Princess Letizia and Crown Prince Felipe to his factory in Coruna, northern Spain December 2, 2008. REUTERS/Miguel Vidal/Files

4. Warren Buffet ($53.5 billion). Investor Warren Buffet arrives for the premiere of the film "Wall Street: Money Never Sleeps" in New York September 20, 2010. REUTERS/Lucas Jackson

5. Larry Ellison ($43 billion). Larry Ellison, co-founder and CEO of Oracle Corporation, arrives at the premiere of "The Guilt Trip" starring Barbra Streisand and Seth Rogen in Los Angeles in this file photo from December 11, 2012. Ellison, with a fortune of $43 billion, rounded out the top five of Forbes' 2013 annual ranking of billionaires. REUTERS/Fred Prouser/Files (UNITED STATES - Tags: BUSINESS PROFILE HEADSHOT)

6. Charles Koch ($34 billion). Charles G. Koch has been the chairman and CEO of Koch Industries — one of the largest privately owned companies in the U.S. — since 1967.

8. Li Ka-shing ($31 billion). Asia's richest man Li Ka-shing waves during a press conference in Hong Kong on August 2, 2012. A Vietnamese property developer who started out making noodles in Ukraine joined Li for the first time on Forbes magazine's world's billionaires list Monday.

9. Lilaine Bettencourt and family ($30 billion). A file picture taken on October 12, 2011 shows the L'Oreal heiress Liliane Bettencourt leaving the Institut de France in Paris.

Source: Yahoo! Philippines

1. 1. Carlos Slim ($73 billion). Mexican businessman Carlos Slim listens during a news conference after the inauguration of a new research facility at the International Maize and Wheat Improvement Center, or CIMMYT, in Texcoco outside Mexico City in this file photo from February 13, 2013. Slim, who has taken a hit from the slump in the share price of his America Movil telecoms group since the list was calculated as of Feb. 14, remained the richest ...more 

2. 2. Bill Gates ($67 billion). Microsoft founder and philanthropist Bill Gates listens alongside Mexican businessman Carlos Slim (not pictured) during a news conference after taking part in the inauguration of a new research facility at the International Maize and Wheat Improvement Center, or CIMMYT, in Texcoco outside Mexico City in this file photo from February 13, 2013. Gates held on to his spot as the world's second richest person on Forbes' ...more 

3. 3. Amancio Ortega ($57 billion). Amancio Ortega, chairman of Spanish global fashion group Inditex, laughs during a visit of Spain's Princess Letizia and Crown Prince Felipe to his factory in Coruna, northern Spain December 2, 2008. REUTERS/Miguel Vidal/Files

4. 4. Warren Buffet ($53.5 billion). Investor Warren Buffet arrives for the premiere of the film "Wall Street: Money Never Sleeps" in New York September 20, 2010. REUTERS/Lucas Jackson

5. 5. Larry Ellison ($43 billion). Larry Ellison, co-founder and CEO of Oracle Corporation, arrives at the premiere of "The Guilt Trip" starring Barbra Streisand and Seth Rogen in Los Angeles in this file photo from December 11, 2012. Ellison, with a fortune of $43 billion, rounded out the top five of Forbes' 2013 annual ranking of billionaires. REUTERS/Fred Prouser/Files (UNITED STATES - Tags: BUSINESS PROFILE HEADSHOT)

6. 6. Charles Koch ($34 billion). Charles G. Koch has been the chairman and CEO of Koch Industries — one of the largest privately owned companies in the U.S. — since 1967.

7. 8. Li Ka-shing ($31 billion). Asia's richest man Li Ka-shing waves during a press conference in Hong Kong on August 2, 2012. A Vietnamese property developer who started out making noodles in Ukraine joined Li for the first time on Forbes magazine's world's billionaires list Monday.

8. 9. Lilaine Bettencourt and family ($30 billion). A file picture taken on October 12, 2011 shows the L'Oreal heiress Liliane Bettencourt leaving the Institut de France in Paris.

9. 1. Carlos Slim ($73 billion). Mexican businessman Carlos Slim listens during a news conference after the inauguration of a new research facility at the International Maize and Wheat Improvement Center, or CIMM