Utility Measurement
Utility Measurement - Related Videos
01:29
Concept of Utility
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2024
Utility Utility is the satisfaction a customer gets from using a product. It refers to the level of satisfaction a consumer experiences. Generally, the term utility carries a wide range of implications, roughly translating to "benefit," "well-being," or "happiness." Consumers derive "utility" from using products that give them satisfaction. Utility can be measured either cardinally or ordinally. Cardinal Utility When measured cardinally, some economists used monetary units, and others suggested...
01:25
Relationship between Total Utility and Marginal Utility
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2024
Total Utility Total utility, or TU, is the overall utility received from the consumption of all units of a product. For example, Nicole eats the first slice of pizza. It gives her immense satisfaction. This is her TU from the first slice. She gets some satisfaction from the second slice. The sum of utilities derived from the first and second slices gives TU from two slices of pizza. TU is the cumulative satisfaction from all consumed slices. Marginal Utility Marginal utility, or MU, measures...
01:09
Marginal Utility
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2024
Marginal Utility Marginal utility measures the additional satisfaction a person gets from consuming one more unit of a commodity. Imagine Nicole is very hungry, and she orders a pizza. She eats the first slice, which gives her immense satisfaction. This satisfaction is her utility from consuming the first slice. She eats another slice of pizza. The additional satisfaction she gets from eating this second slice is its marginal utility. Law of Diminishing Marginal The law of diminishing marginal...
01:28
Diminishing Marginal Utility of Income
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2025
Utility reflects the satisfaction individuals gain from consuming goods and services. As income rises, people can afford more goods and services, increasing overall satisfaction. So, utility and income are related. Economists often assume utility can be measured numerically to analyze the relationship between utility and income. They often assume most people experience diminishing marginal utility of income.Diminishing marginal utility suggests that each additional dollar of income provides...
01:08
Expected Income, Expected Utility, and Risk Aversion I
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2025
Consider a hypothetical example where John is evaluating a job offer from a company. If the company performs well, John will earn an annual income of $81,000; if it performs poorly, he will earn $49,000. Each outcome is equally likely, with a probability of 0.5. These two outcomes are mutually exclusive, meaning only one can occur and their probabilities sum to 1. The amounts of $81,000 and $49,000 represent the payoffs associated with each outcome.John's expected income is the average amount...
FAQs
The key distinction is whether utility numbers carry only ordering information or also represent differences in satisfaction. Ordinal utility ranks bundles, so it can identify which bundle a consumer prefers without treating numerical gaps as meaningful. Cardinal utility assigns numerical values, allowing economists to calculate total and marginal utility and use those quantities in analyses of consumption choices and welfare.
Marginal utility focuses on the change associated with one additional unit, rather than the satisfaction from the entire quantity consumed. When diminishing marginal utility applies, each successive unit generally adds less than the previous one. This pattern helps explain why the attractiveness of expanding consumption can decline and why consumers weigh additional units when making choices under scarcity.
Utility maximization compares available preference bundles and identifies the choice that provides the greatest utility within scarcity constraints. The analysis connects consumer preferences to the resources available for consumption, rather than treating satisfaction in isolation. It therefore provides a framework for explaining which bundle a consumer selects when alternatives compete for limited income or other available resources.
Price and income changes alter the set of consumption choices available to consumers. A price change affects what consumers can obtain, while an income change affects their purchasing capacity. Because utility maximization evaluates choices under scarcity, these shifts can change the selected bundle. Comparing the resulting choices helps economists analyze how demand responds to economic conditions and preferences.
Demand analysis connects preference rankings or utility values with prices and income to examine how consumers’ desired purchases respond to changing conditions. Marginal utility adds a unit-by-unit perspective, while utility maximization identifies the preferred attainable bundle. Together, these elements help relate individual consumption decisions to broader patterns in demand without separating preferences from the constraints consumers face.
Ordinal rankings are useful when the task is to compare bundles and establish a preference order. Cardinal values are useful when analysis requires numerical representations of total or marginal utility. This difference matters in applications that study consumption choices, demand, or welfare, because the selected approach determines what kind of comparison the analysis can make.