a) Discuss the following statement: In the real world there is no industry which conforms precisely to the economist’s model of perfect competition. This means that the model is of little practical value’.
(b) Illustrate with a diagram and explain the short-run perfectively competitive equilibrium for both (i) the individual firm and (ii) the industry;
(c) Illustrate with a diagram and explain the long-run perfectly competitive equilibrium for the firm