In this crisis, the search for high financial earnings showed its consequences in a more overwhelming way, on what concerns both the risks (and losses) to which the corporations were exposed and the macroeconomic impacts provoked by its magnitude in a context of deep risk aversion. Such debate, in spite of still incipient, began with the disclosure of the negative results of several productive companies from emerging economies, resulting from operations with financial derivatives in the exchange market. Based on what is known in the moment, that process reached companies, in Brazil, China, South Korea, India, and Mexico. In those emerging economies, in different degrees, the great international banks are present and many of those companies alleged they have been deceived by them in establishing asymmetrical contracts of derivatives. In Brazil, national financial institutions also participated in the movement, differently, for instance, of Mexico, whose banking sector in dominated by international players.