Concept introduction:
Budget Line: It is defined as the combination of all the goods that a consumer can purchase, exhausting all his income. The formula for the budget line is:
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Marginal Utility: It is defined as the change in the total utility due to a change in an additional unit of a good. It may be diminishing, increasing, or constant.
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• X is the quantity of any good.
• N is the number of goods.
Marginal Utility per dollar: It is the ratio of the marginal utility to that of the price of the good.
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Maximizing utility in the case of two goods: It states that the equilibrium level of consumption of the two goods for a consumer is achieved when the Marginal Utility per dollar of the two goods are equal. This means that the following conditions must be fulfilled:
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