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Principles of Microeconomics
Terms: Ch. 6
18
Economics
Undergraduate 1
01/28/2012

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Term
Profit-maximizing firm
Definition
A firm whose primary goal is to maximize the difference between it's total revenues and total costs
Term
Perfectly competitive market
Definition
A market in which no individual supplier has significant influence on the market price of the product
Term
Price taker
Definition
A firm that has no influence over the price at which it sells it's product
Term
Imperfectly competitive firm
Definition
A firm that has at least some control over the market price of it's product
Term
Factor of production
Definition
An input used in the production of a good or service
Term
Short run
Definition
A period of time sufficiently short that at least some of the firm's factors of production are fixed.
Term
Long run
Definition
A period of time of sufficient length that all the firm's factors of production are variable
Term
Law of diminishing returns
Definition
A property of the relationship between the amount of a good or service produced and the amount of a variable factor required to produce it; it says that when some factors of production are fixed, increased production of the good eventually requires ever-larger increases in the variable factor
Term
Fixed factor of production
Definition
An input whose quantity cannot be altered in the short run
Term
Variable factor of production
Definition
An input whose quantity can be altered in the short run
Term
Fixed cost
Definition
The sum of all payments made to the firm's fixed factors of production
Term
Variable cost
Definition
The sum of all payments made to the firm's variable factors of production
Term
Total cost
Definition
The sum of all payments made to the firm's fixed and variable factors of production
Term
Marginal cost
Definition
As output changes from one level to another, the change in total cost divided by the corresponding change in output
Term
Average variable cost (AVC)
Definition
Variable cost divided by total output
Term
Average total cost (ATC)
Definition
Total cost divided by total output
Term
Profitable firm
Definition
A firm whose total revenue exceeds it's total cost
Term
Producer surplus
Definition
The amount by which price exceeds the seller's reservation price
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