"One basic flaw running through much of the recent financial innovation is that thinking embedded in mathematics and physics could be directly adapted to markets. A search for repetitive patterns of behavior and computations of normal distribution curves are a big part of the physical sciences. However, financial markets are not driven by changes in natural forces but by human phenomena, with all their implications for herd behavior, for wide swings in emotion, and for political intervention and uncertainties."Paul Volcker, ex-presidente do Fed e atual presidente do Economic Recovery Advisory Board, em um extenso e interessante artigo para a The New York Review of Books. Dá um certo alívio ver que alguém no governo dos EUA entende a natureza dos mercados; resta torcer para que ele seja ouvido (se é que há alguém querendo efetivamente mudar alguma coisa por lá).
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