- All firms will maximise profit if they: produce at a point which marginal cost equals marginal revenue when marginal cost is rising
- Cost minimised level: is when marginal cost equals average total cost
- Diminising returns will always occurs: because fixed factors of production such as land, machinery or buildings will all have a maximum possible output
- if the firm moves beyond optimum level of production: output will fall and the only way of increasing output is buying, purchasing extra fixed factors of production and moving into long run
- In short term, output can only be increase: by applying extra variable factors of production
- The firms optimum level of production is: when total products is maximised and at this point marinal product is zero
- The objective of all businesses: is to maximise level of profit as the owners of businesses will wish to maximisedthe returns on their investment.