Examlex
First- and second-graders often identify their emotions as "mixed," such as being happy and sad at the same time.
Perfectly Competitive Industry
An industry that meets the criteria for perfect competition, meaning it includes many small firms producing identical products and allows for free entry and exit.
Total Surplus
The sum of consumer surplus and producer surplus in a market; it measures the total benefit to society from the production and consumption of goods and services.
AC
Average Cost, which is the total cost of production divided by the quantity of output produced.
Monopolist
A single seller in a market who has significant market power and can influence the price and quantity of goods or services.
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