Firm
Marginal returns of labour
Law of diminishing returns
Average returns of labour
Total returns of labour
Productivity
Labour productivity
Returns to scale
Plant
Increasing returns to scale
Constant returns to scale
Decreasing returns to scale
Economy of scale
Diseconomy of scale
Long-run average cost
Optimum firm size
Minimum efficient scale
Internal economies and diseconomies of scale
External economy of scale
External diseconomy of scale
Marginal cost
Average fixed cost
Average variable cost
Average total cost
Long-run marginal cost
Long-run average cost
Total revenue
Average revenue
Marginal revenue
Price-taker
Price-maker
Quantity-setter
Profit
Profit maximisation
Normal profit
Abnormal profit
Technological change
Invention
Innovation
Mechanisation
Automation
Productive efficiency
Dynamic efficiency
Monopolistic competition
Duopoly
Creative destruction