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Transformation of V4 countries was the first step of the change of the bipolar world diversity. Transformation from the central planned economy to the market economy was a very complex process. The main part of the transformation represents the change of the public ownership towards private property. It was realized by the privatization of state-owned companies. Due to the lack of domestic savings, the involvement and participation of foreign capital seemed to be necessary. Foreign capital was represented mainly b...

In this paper the authors focus on the problem of portfolio selection based on Mean Absolute Deviation risk measure. They try to design new model based of the idea of event tree. It means, that the investor make the decision in every state of investment separate and hold the portfolio from previous period, or change the portfolio. So the investor can optimize the decision on the financial market. The biggest advantage of this model is, that the solution can be never worst like the solution, we get with standard op...