IB economics calculations Flashcards
Revenue maximisation point
MR = 0
Profit maximisation point
MC = MR
Profit
Total revenue - total cost
Supernormal profit
Average revenue > average costs
Subnormal profit
Average revenue < average costs
Normal profit
Average revenue = average costs
Allocative efficiency
Price = Marginal cost (MSB = MSC)
Total revenue
Price x quantity
Average revenue
Total revenue / quantity of output
Marginal revenue
Change in total revenue / change in quantity
Average cost
Total cost / quantity (AFC+AVC)
Marginal cost
Change in total cost / change in quantity
Index number
(current value / raw value base year) x 100
Percentage change (New value - old value) / old value x 100
(New value - old value) / old value x 100
GDP - output approach
Value of all goods and services