Eugene Francis "Gene" Fama (/ˈfɑːmə/; born February 14, 1939) is an American economist, best known for his empirical work on portfolio theory, asset pricing, and the efficient-market hypothesis.Eugene Francis "Gene" Fama (/ˈfɑːmə/; born February 14, 1939) is an American economist, best known for his empirical work on portfolio theory, asset pricing, and the efficient-market hypothesis....more