Consider the production of football boots using labour, that is human workers, and machines. The

number of machines is fixed in the short-run.

a) Using the example of football boots, explain the law of diminishing marginal returns.

(5 marks)

b) Describe the link between marginal cost and marginal physical product. (6 marks)

c) Explain economies of scale, diseconomies of scale and constant returns to scale.

(9 marks)