Under perfect competition and constant returns to scale, firms producing homogeneous products set their prices at their marginal costs which also equal their average costs. However, the departure from these standard assumptions has important implications with respects to the derived theoretical...

ITransition started by a sudden collapse of corporate efficiency, as one important element of the transformational recession. It was followed by a consolidation period, with rapidly increasing efficiency and improving returns to scale. During this period performance was frequently improved by...