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Category: Science
Word Count: 1253
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5. huck finn

Is the human being rational or not

1. Introduction
The neo-classical finance theory which is onset of Markowitz’s portfolio selection theory(1952) is mostly based on the following assumptions: The investors’ behavior are completely rational, the actions of all the investors are guided by the criterion of maximizing expected utility; And simultaneously the markets are efficient (EMH). As Fridson (1994) asserted, based upon the normative assumptions and the EMH, rational and fully informed investors (i.e., representative agents)

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