There was an expert accountant who was well versed in the game theory. He once hears that his intelligent niece, who is five years old, always takes a nickel, when a choice between a nickel and a dime is offered. He explains to his niece “You must understand, dime is twice as valuable as a nickel, so always choose a dime.” The niece tells “Uncle, but then people will not offer me any money.”

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