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In September 2007, a serious financial crisis became evident in the developed countries, due to serious mistakes in economic policy. Even against their own ideology, governments have not spared measures to reduce its effects, have failed to contain it, and it advances towards a global recession of uncertain depth and duration. The crisis has already changed the theoretical and practical paradigms that have dominated the academic and policy worlds in the last three decades. It will also cause serious effects in the fragile economic, social and political equilibriums of the developing countries, especially in Latin America because of its dependence on raw materials production, remittances and external capitals flows that are diminishing rapidly. The crisis will lead to a new state-market relation and to new paradigms with large Keynesian influence, and from this, will grow a new opportunity for Latin America, if it consolidates a new way of managing its economy. [ABSTRACT FROM AUTHOR]

This work develops a model of the comportment adopted by investors who have succeeded in diversifying their risks in the local stock market, given the relative shallowness of that market. Therefore, they purchase currency as an alternative instrument of investment. The model was econometrically verified for the Colombian economy. The conclusion was that while strong increases in share prices occurred in 2005 in the Colombian stock exchange, they are not entirely explained by the basis of valuation; corporate performance measured by dividends and the perception of risk measured by discount rates. Econometric tests provide data with regard to the important effect of the fluctuations of the exchange market, and the monetary situation as a factor in the determination of share prices. At the same time, there are findings of rational bubbles in the Colombian variable-income market, where there are strong expectations of a revaluation of the peso, or of expansive monetary policies. [ABSTRACT FROM AUTHOR]