"The size of a firm influences its competitive policies in a number of ways. In the first place the scale of its purchases and sales relative to the total volume of transactions in the firm's market is one indication of the extent of its market control. Taken in conjunction with other data it may throw a good deal of light on price and production policies. Certain authorities, on the other hand, brush aside figures on the relative size of firms as irrelevant and emphasize the decisive importance of the elasticity of the firm's demand curve. 3 It would no doubt be extremely convenient if economists knew the shape of individual demand and cost curves and could proceed forthwith, by comparisons of price and marginal cost, to conclusions regarding the existing degree of monopoly power. The extent to which the monopoly theorists, however, refrain from an empirical application of their formulae is rather striking."

“The term monopoly as used in the law is not a tool of analysis but a standard of evaluation. Not all trusts are held monopolistic but only" bad" trusts; not all restraints of trade are to be condemned but only" unreasonable" restraints.”

“The current emphasis on price policy, as against price, as a proper object of study represents recent economic reflection on the significance of expectations, uncertainties, market control, and the position of price as one among many selling terms. Policy implies some degree of control over the course of events and, at the same time, the use of judgment as to the probable consequences of alternative lines of action. In perfect markets, whether monopolistic or competitive, price is hardly a matter of judgment and where there is no judgment there is no policy. The area of price policy, then, embraces the deliberative action of buyers and sellers able to influence price; that is to say, it covers practically the whole field of industrial prices.”