Examlex
What is reliability and what is validity?
Monopoly Position
A market structure characterized by a single seller who has exclusive control over a product or service, leading to limited consumer choice.
Average Total Costs
The total costs of production (fixed plus variable costs) divided by the total quantity of output produced, indicating the average cost per unit of product.
Perfect Competitor
A hypothetical firm in a market structure characterized by many sellers, selling homogeneous products, and having no control over the market price.
Long Run
A period of time in economics during which all factors of production and costs are variable, allowing for the adjustment to changes in market conditions or demand.
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