Several performance indicators have been considered and a similar view has been
taken of these – that they are not the passive result of conduct but that they impact upon
both conduct and market structure and the dividing line between conduct and performance
is often blurred. Although neo-classical economics uses profitability as the main
measure of the performance, it is clear from the discussion in this chapter that the measure
of performance of firms and industries cannot be based on a single indicator but on
a balanced set of indicators like profitability, growth, productivity and investment and
other more diverse social indicators.