Using a diagram, explain why firms in monopolistic competition are neither allocatively nor productively efficient?

Assumptions: large no. of firms in the industry, relatively small firms, low barriers to entry, perfect knowledge, product differentiation Allocative efficiency: MC=AR and the market allocated resources so that social surplus is maximisedProductive efficiency: MC=AC and the firm produces at its lowest possible average total costs Firms aim to profit maximise = neither allocatively nor productively efficient