Term | Symbol | Equation | Definition | |
Fixed cost
|
Cost that is independent of the output level | |||
Variable cost | Cost that varies with the output level | |||
Total fixed cost | TFC | Cost of the fixed inputs (equals sum of quantity times unit price for each fixed input) | ||
Total variable cost | TVC | Cost of the variable inputs (equals sum of quantity times unit price for each variable input) | ||
Total cost | TC | TC=TFC+TVC | Cost of all inputs (equals fixed costs plus variable costs | |
Marginal cost | MC | MC=DTC¸DQ | Change in total cost resulting from a one-unit rise in output (Q) [equals the change in total cost divided by the change in output] | |
Average fixed cost | AFC | AFC=TFC¸Q | Total fixed cost per unit of output [equals total fixed cost divided by total output] | |
Average variable cost | AVC | AVC=TVC¸Q | Total variable cost per unit of output [equals total variable cost divided by total output[ | |
Average total cost | ATC or | ATC=AFC+AVC | Total cost per unit of output [equals average fixed cost plus average variable cost] |