Billionaires Carlos Slim And Bill Gates Announcement On...

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Billionaire Carlos Slim, from left, Eruviel Avila Villegas, governor... Photo d'actualitéAction caritative et assistance,Agriculture,Amérique du Nord,Bill Gates,Carlos Slim,Continent américain,Cérémonie,Cérémonie du ruban,Ferme,Finance,Gouverneur,Horizontal,Lettre majuscule,Marcher,Mexique,Média,Richesse,État de Mexico,États-UnisPhotographer Collection: Bloomberg 2013 BloombergBillionaire Carlos Slim, from left, Eruviel Avila Villegas, governor of state of Mexico, Thomas Lumpkin, director of the International Maize and Wheat Improvement Center, known by its Spanish initials as CIMMYT, and billionaire Bill Gates, walk to a ribbon-cutting ceremony at the CIMMYT in Texcoco, Mexico, on Wednesday, Feb. 13, 2013. CIMMYT, which performs research for agricultural productivity, opens its research facility this week. Photographer: Susana Gonzalez/Bloomberg via Getty Images