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Prečo flexibilita Warrena Buffetta voči Visa a vernosť American Express ponúkajú lekcie v investovaní
Strategické schopnosti Warrena Buffetta sú zvýraznené investíciami do American Express a Visa, ktoré predstavujú rôzne investičné filozofie v portfóliu Berkshire Hathaway. American Express, držaný