Firm (or producer or business)
Private enterprise
Production
Accounting Profit
Economic Profit
Fixed Inputs
Variable inputs
Short Run
Long Run
Marginal Product (MP)
the additional output of one more worker; mathematically, MP = ΔTP / ΔL
Law of Diminishing Marginal Productivity
Variable costs
Fixed Costs
Total Costs
Marginal Cost
the additional cost of producing one more unit of output; mathematically, MC = ΔTC / ΔL
Average Profit
Average Total Cost
Average Variable cost
constant returns to scale
diseconomies of scale
economies of scale
explicit costs
Factors of production
(or inputs) resources that firms use to produce their products, for example, labor and capital
implicit costs
long run
short run
long-run average cost (LRAC) curve
short-run average cost (SRAC) curve
production function
production technologies
revenue
Total product
Perfect Competition
Monopolistic Competition
Oligopoly
Monopoly