3.3.4 Normal Profits, Supernormal profits and losses Flashcards
What is profit
Total revenue - Total costs
What is included under total costs
Total Fixed costs
Total variable costs
opportunity costs
What is normal profits
Minimum level of profit required to keep factors of production in current use
What is supernormal profits
- any profit made above normal profits
- Profit when AR > AC
- When firms are making supernormal profits, there is an incentive for other producers to enter a market
What is sub-normal profits
Any economic profit below normal profit
profit is not enough to cover opportunity cost
Also known as an economic loss
How would you show supernormal profits on a diagram
Where price>costs
Describe normal profits on a graph
Where Price=Cost
Describe Subnormal profits on a diagram
Where costs>prices
Importance of profits
- Dynamic efficiency - new innovative product, higher quality
- Demand for and flow of factor resources: Resources flow where the risk-adjusted rate of profit is highest
- Rising profits might reflect improvements in supply-side performance - and results of high aggregate demand in an economy
Strategies to increase profit
- reduce overheads so average cost per unit falls
- Increase labour productivity - capital/labour substitution
- Lower prices if demand is elastic
- Enter new markets
What is the short-run shut-down point
- firm will supply their products as long as price per unit is greater than or equal to average variable cost (i.e. where AR = AVC)
- contribution being made to covering the fixed costs of production
What is the long-run shut down point
- needs to make at least normal profit in the long run to justify remaining in an industry
- Where P=AC
- This is long run because, firms can survive while making a loss because the managers are satisficing, or where a downturn is seen as
temporary and demand is expected to pick up again - Losses might be cross-subsidised by profits in another sector/market