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Marginal utility must be positive.
Economic Roles
The functions and positions individuals and groups occupy in the economic system, affecting how they produce, distribute, and consume goods and services.
Single-Income
Pertaining to a household or an individual who relies on one source of income, typically from one wage earner.
Two-Income Couples
Households in which both partners earn wages or salaries, contributing to the family's total income.
Economic Roles
Functions and responsibilities assumed by individuals or groups within an economic system, including production, distribution, and consumption of goods and services.
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