Step 1: Understanding the Concept:
The question asks for the definition of utility, a fundamental concept in the theory of consumer behavior.
Step 2: Detailed Explanation:
In economics, Utility refers to the want-satisfying power of a commodity or a service. It is the amount of satisfaction, pleasure, or benefit that a consumer derives from the consumption of a good.
Key characteristics of utility are:
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\item It is subjective: Utility varies from person to person, place to place, and time to time. A cup of coffee may provide high utility to one person but none to another.
\item It is not the same as usefulness: A commodity may have utility but may not be useful. For example, cigarettes have utility for a smoker but are harmful to health.
\item It is ethically neutral: The concept of utility does not involve any moral or ethical judgments.
\end{itemize}
Economists use this concept to explain how consumers make choices to maximize their satisfaction.
Step 3: Final Answer:
Utility is the capacity of a good or service to satisfy a human want. It is the measure of satisfaction a consumer receives from consuming a product.
Which of the following are applicable to the individual's expenditure function?
(A) It is homogeneous of degree zero in all prices.
(B) It represents the maximum expenditure to achieve a given level of utility.
(C) It is non-decreasing in prices.
(D) It is concave in prices.
Choose the correct answer from the options given below: