Marginal Utility is the additional satisfaction a consumer gains from consuming one more unit of a good or service. Marginal utility is an important economic concept because economists use it to determine how much of an item a consumer will buy. Positive marginal utility is when the consumption of an additional item increases the total utility. Negative marginal utility is when the consumption of an additional item decreases the total utility.
Cost of the next best alternative use of money, time, or resources when one choice is made rather than the other.
Remember these! You will hear them a lot this semester!
Land
Labor
Capital
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• Efficiency
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