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Market Power In Antitrust, George A. Hay
Market Power In Antitrust, George A. Hay
George A. Hay
The concept of market power is at the core of antitrust. Philosophically, antitrust policy is aimed primarily at preventing firms from achieving, retaining, or abusing market power. Operationally, assessing whether a firm or firms have market power or any reasonable prospect for achieving it is often the first (and sometimes, the only) step in performing an antitrust analysis. Few would dispute that market power should play a prominent role in antitrust analysis. Nevertheless, important questions remain. Some of these questions quite naturally focus on the precise degree of importance given to market power. Is it an essential ingredient in antitrust …
An Instrumental Theory Of Market Power And Antitrust Policy, Jeffrey L. Harrison
An Instrumental Theory Of Market Power And Antitrust Policy, Jeffrey L. Harrison
Jeffrey L Harrison
Since Judge Hand's pivotal opinion in United States v. Aluminum Company of America (Alcoa), the possession of monopoly power has been treated as presumptively legal. The focus of the antitrust laws since then has been on defining when that power is abused. This approach to market power cannot be squared with the prevailing view that antitrust law is grounded in economic theory. To understand why, one must see market power for what it is: the ability of a firm to raise prices above competitive levels and to profitably keep them there. Seen in this light, market power is indistinguishable from …