Ordinal Utility
Ordinal Utility - 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
A strictly increasing transformation preserves the order assigned to every pair of bundles: if one bundle receives a higher utility value before transformation, it remains higher afterward. Because consumer choice depends on preference rankings rather than numerical utility differences, the transformed function represents the same preferences. Consequently, the associated indifference-curve and choice analysis remains unchanged.
Ordinal utility treats utility numbers as labels for ranking alternatives, not as measurable quantities of satisfaction. Thus, the difference between utility values, or the ratio of two values, has no independent interpretation. What matters is whether one bundle is preferred to, rejected in favor of, or regarded as equivalent to another.
Preference relations provide the logical comparisons that ordinal utility represents. They identify whether a consumer prefers one bundle, prefers another, or views the two as equally desirable. This structure lets economists organize possible choices without assigning measurable satisfaction units, creating the foundation for analyzing indifference curves and consumer decisions.
Indifference curves translate preference rankings into a graphical form by collecting bundles that the consumer regards as equally desirable. Their role is comparative rather than quantitative: the curves show how bundles relate in preference, while the utility values attached to them remain dependent on the chosen representation. This makes them useful for visualizing consumer preferences.
Analysis combines the consumer’s preference ordering with the bundles that the budget constraint makes affordable. The relevant choice is an affordable bundle that the consumer ranks most highly among available alternatives. This procedure connects preferences to observed selection without requiring utility numbers to measure satisfaction or explain the magnitude of the choice.
Demand theory can derive consumer choice from rankings over affordable bundles rather than from measurable satisfaction units. By combining preference relations with budget constraints, the framework explains which alternatives consumers select under their economic limits. Those choices provide the basis for analyzing demand while keeping the interpretation of utility strictly ordinal.
Ordinal utility supports welfare comparisons grounded in preference rankings, such as determining whether a consumer prefers one bundle to another or considers them equivalent. It does not justify interpreting utility differences as amounts of welfare gained or lost. The approach therefore permits preference-based evaluation while avoiding claims about measurable satisfaction magnitudes.