Monday, November 3, 2008
Entrevista com Markowitz
O pai da teoria de finanças e ganhador do Nobel, Harry Markowitz, é categórico, e concorda com o SB, os profissionais de finanças são incompetentes: Mr. Markowitz doesn't excuse the financial engineers who bundled complex mortgage-based and other securities. They violated the first principle of his portfolio theory. "Diversifying sufficiently among uncorrelated risks can reduce portfolio risk toward zero," he says in an interview. "But financial engineers should know that's not true of a portfolio of correlated risks."