Short run average cost curves will increase as output increases due to
Diminishing marginal returns
Where is the minimum efficient scale
Where the long run marginal cost curve cuts through the long run total cost curve
Supernormal profits
Profits in excess of both measured costs and those associated with opportunity costs
What should firms only be concerned with in the short run?
In the short run firms will only be concerned with covering its variable costs - it should ignore sunk or fixed costs
Price discrimination
When a firm can charge a different price to different customers
5 stages of a products life cycle