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Economies of scale throughout the range of market demand give natural monopolies
Educational Attainment
The total years of formal education.
Income
The amount of money brought into a household from various sources during a given year (wages, investment income, dividends, etc.).
Independent Variable
A variable in an experiment or study that is manipulated to determine its effect on the dependent variable.
Dependent Variable
In research, it’s the outcome or factor that researchers are interested in understanding or predicting, which changes in response to the independent variable.
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