Predatory Pricing

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Predatory Pricing




Predatory pricing is primarily a strategy of price reduction that intends to eliminate a rival firm and thus increase market power. More generally, the goal of predatory pricing may be to discipline or otherwise inhibit a competitor. Also, while price is typically the instrument used for this purpose, other actions may be taken, such as bundling, refusing to supply, or other practices that effectively raise the rivals cost of doing business. Predatory pricing is therefore just one form of predationthough arguably the most commonly practiced and studied.

Predatory pricing is a controversial issue in scholarly and legal circles alike. On one hand, price cuts can be used as a means to exclude rival firms and increase future market power. On the other, price cuts are the bread and butter of market competition. Thus it is very difficult to distinguish genuine competitive pricing from predatory (and thus anticompetitive) pricing; and even if predatory pricing has negative long run effects, in the short run it has the same positive effects of aggressive competitive pricing.


Allegations of predatory behavior are as old as oligopoly competition. Starting in the nineteenth century, examples include ocean shipping, sugar, tobacco, oil, and others. For example, some historians argue that, in the late 1900s the Southern Bell Telephone Company effectively eliminated competition through a strategy of pricing below cost in response to entry.

Reviewing the evidence in one of the most prominent cases, Standard Oil Company of New Jersey v. United States 221 U.S. 1 (1911), economist John McGee argued that there is little support for the allegations of predatory behavior. More importantly, he argued that the concept of predatory pricing itself lacks logical consistency. Of the several reasons pointed out by McGee, one deserves special attention. McGee maintained that, in addition to the prey, the predator too suffers from predatory pricing. If the prey resists predation and remains active, then the predator eventually will give up its efforts. Anticipating this outcome, the prey is indeed better off resisting predatory efforts. Anticipating this outcome, in turn, the alleged predator is better off refraining from its predatory strategy. Even if the alleged prey were short of cash, it could always borrow from a bank with the (correct) promise that its losses are only temporary. One can hardly underestimate the influence of McGees work, both in economics scholarship and in legal practice.

Early-twenty-first-century legal rulings in the United States illustrate a skeptical approach to the concept of predatory pricing. This is particularly apparent in two important decisions by the U.S. Supreme Court: Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corp., 475 U.S. 574 (1986) and Brooke Group Ltd. v. Brown & Williamson Tobacco Corp., 509 U.S. 209 (1993). Adopting the theories of McGee and his followers, the Court embraced the view that predatory pricing schemes are rarely attempted; and that, if attempted, their success is rare.

In contrast to the United States, the European Unions (EU) approach to predatory pricing (based on Article 82 of the European Community Treaty) is rather aggressive. For example, in 2003 France Telecom SA was fined for offering its services at a loss in the high-speed internet access market.

Broadly speaking, the U.S. and EU approaches to testing for predatory behavior are similar: They look for evidence that there is (a) a sacrifice of short-term profits; and (b) a reasonable expectation that such losses are compensated by long-term gains from greater market power. The main difference between the United States and Europe is the strength of the second requirement, which is weaker in Europe. (There is also some divergence with respect to part (a). Typically, evidence of short-term losses is gathered by comparing price to some measure of cost. The question is then what measure of cost makes the most theoretical and practical sense.)


For a long time, McGees analysis provided the only coherent economic theory of predatory pricing. But unlike legal practice, economic thinking has departed significantly from McGees theory. The research suggests that there are several reasons why predatory pricing is a plausible strategy. One reason is asymmetry of information between predator and prey. By repeatedly fighting rivals with low prices, a predator increases its reputation for toughness; and thus encourages exit and discourages future entry. Alternatively, if the prey is uncertain about the predators costs, then the latters low prices signal that the predators costs are low too, and so are the preys long term prospects.

A related source of information asymmetry is between the prey and capital markets. One of the key points in McGees case against predation is that, if the alleged prey were short of cash, banks should be willing to step in with a loan under the (correct) promise that the preys losses are only temporary. But due to imperfect monitoring of the borrowers actions banks are forced to offer contracts where future financing is contingent on repayment of current loans. In this context, the predator may have an incentive to price below cost: While the predator loses money, so does the prey; and to the extent that lower current profitability decreases the probability of loan repayment, the predator has something to gain in the long runthe possibility that the prey, unable to secure financing, will be forced out of the market.

Finally, a third class of equilibrium models of predatory pricing is based on dynamic effects through the firms profit functions (either through demand or through costs). Consider the case of two competitors moving down the learning curve. If the lagging firm loses the current sale, it might find itself so far behind the race that exit is the best option. Anticipating such behavior, the leader has an incentive to price aggressively, possibly below cost, thus increasing the chances of monopolizing the market. Unlike the previous theories, this one does not rely on asymmetric information between firms or between firms and capital markets. Moreover, while the learning curve provides a natural link between current sales and future profits, there are several other examples: switching costs, installed base or network effects, and so forth.

In summary, although U.S. legal doctrine is rather skeptical with respect to predatory pricing, economic theory has provided a wealth of coherent explanations of why predation is plausible.

SEE ALSO Antitrust Regulation; Competition; Competition, Imperfect; Competition, Marxist; Game Theory; Information, Asymmetric; Monopoly; Price Setting and Price Taking; Regulation


Bolton, Patrick, and David S. Scharfstein. 1990. A Theory of Predation Based on Agency Problems in Financial Contracting. American Economic Review 80 (1): 93106.

Cabral, Luís M. B., and Michael H. Riordan. 1994. The Learning Curve, Market Dominance and Predatory Pricing. Econometrica 62 (5): 11151140.

Kreps, David M., and Robert Wilson. 1982. Reputation and Imperfect Information. Journal of Economic Theory 27: 253279.

McGee, John S. 1958. Predatory Price Cutting: the Standard Oil (N.J.) Case. Journal of Law and Economics 1 (October): 137169.

Milgrom, Paul R., and John Roberts. 1982a. Predation, Reputation and Entry Deterrence. Journal of Economic Theory 27: 280312.

Milgrom, Paul R., and John Roberts. 1982b. Limit Pricing and Entry under Incomplete Information: An Equilibrium Analysis. Econometrica 50 (2): 443460.

Luís Cabral