Archives For James Buchanan

[The following is a guest post from Andrew Mercado, a research assistant at the Mercatus Center at George Mason University and an adjunct professor and research assistant at George Mason’s Antonin Scalia Law School.]

The Competition and Transparency in Digital Advertising Act (CTDAA), introduced May 19 by Sens. Mike Lee (R-Utah), Ted Cruz (R-Texas), Amy Klobuchar (D-Minn.), and Richard Blumenthal (D-Conn.), is the latest manifestation of the congressional desire to “do something” legislatively about big digital platforms. Although different in substance from the other antitrust bills introduced this Congress, it shares one key characteristic: it is fatally flawed and should not be enacted.  


In brief, the CTDAA imposes revenue-based restrictions on the ownership structure of firms engaged in digital advertising. The CTDAA bars a firm with more than $20 billion in annual advertising revenue (adjusted annually for inflation) from:

  1. owning a digital-advertising exchange if it owns either a sell-side ad brokerage or a buy-side ad brokerage; and
  2. owning a sell-side brokerage if it owns a buy-side brokerage, or from owning a buy-side or sell-side brokerage if it is also a buyer or seller of advertising space.

The proposal’s ownership restrictions present the clearest harm to the future of the digital-advertising market. From an efficiency perspective, vertical integration of both sides of the market can lead to enormous gains. Since, for example, Google owns and operates an ad exchange, a sell-side broker, and a buy-side broker, there are very few frictions that exist between each side of the market. All of the systems are integrated and the supply of advertising space, demand for that space, and the marketplace conducting price-discovery auctions are automatically updated in real time.

While this instantaneous updating is not unique to Google’s system, and other buy- and sell-side firms can integrate into the system, the benefit to advertisers and publishers can be found in the cost savings that come from the integration. Since Google is able to create synergies on all sides of the market, the fees on any given transaction are lower. Further, incorporating Google’s vast trove of data allows for highly relevant and targeted ads. All of this means that advertisers spend less for the same quality of ad; publishers get more for each ad they place; and consumers see higher-quality, more relevant ads.

Without the ability to own and invest in the efficiency and transaction-cost reduction of an integrated platform, there will likely be less innovation and lower quality on all sides of the market. Further, advertisers and publishers will have to shoulder the burden of using non-integrated marketplaces and would likely pay higher fees for less-efficient brokers. Since Google is a one-stop shop for all of a company’s needs—whether that be on the advertising side or the publishing side—companies can move seamlessly from one side of the market to the other, all while paying lower costs per transaction, because of the integrated nature of the platform.

In the absence of such integration, a company would have to seek out one buy-side brokerage to place ads and another, separate sell-side brokerage to receive ads. These two brokers would then have to go to an ad exchange to facilitate the deal, bringing three different brokers into the mix. Each of these middlemen would take a proportionate cut of the deal. When comparing the situation between an integrated and non-integrated market, the fees associated with serving ads in a non-integrated market are almost certainly higher.

Additionally, under this proposal, the innovative potential of each individual firm is capped. If a firm grows big enough and gains sufficient revenue through integrating different sides of the market, they will be forced to break up their efficiency-inducing operations. Marginal improvements on each side of the market may be possible, but without integrating different sides of the market, the scale required to justify those improvements would be insurmountable.


The CTDAA assumes that:

  1. there is a serious competitive problem in digital advertising; and
  2. the structural separation and regulation of advertising brokerages run by huge digital-advertising platforms (as specified in the CTDAA) would enhance competition and benefit digital advertising customers and consumers.

The first assumption has not been proven and is subject to debate, while the second assumption is likely to be false.

Fundamental to the bill’s assumption that the digital-advertising market lacks competition is a misunderstanding of competitive forces and the idea that revenue and profit are inversely related to competition. While it is true that high profits can be a sign of consolidation and anticompetitive outcomes, the dynamic nature of the internet economy makes this theory unlikely.

As Christopher Kaiser and I have discussed, competition in the internet economy is incredibly dynamic. Vigorous competition can be achieved with just a handful of firms,  despite claims from some quarters that four competitors is necessarily too few. Even in highly concentrated markets, there is the omnipresent threat that new entrants will emerge to usurp an incumbent’s reign. Additionally, while some studies may show unusually large profits in those markets, when adjusted for the consumer welfare created by large tech platforms, profits should actually be significantly higher than they are.

Evidence of dynamic entry in digital markets can be found in a recently announced product offering from a small (but more than $6 billion in revenue) competitor in digital advertising. Following the outcry associated with Google’s alleged abuse with Project Bernanke, the Trade Desk developed OpenPath. This allowed the Trade Desk, a buy-side broker, to handle some of the functions of a sell-side broker and eliminate harms from Google’s alleged bid-rigging to better serve its clients.

In developing the platform, the Trade Desk said it would discontinue serving any Google-based customers, effectively severing ties with the largest advertising exchange on the market. While this runs afoul of the letter of the law spelled out in CTDAA, it is well within the spirit its sponsor’s stated goal: businesses engaging in robust free-market competition. If Google’s market power was as omnipresent and suffocating as the sponsors allege, then eliminating traffic from Google would have been a death sentence for the Trade Desk.

While various theories of vertical and horizontal competitive harm have been put forward, there has not been an empirical showing that consumers and advertising customers have failed to benefit from the admittedly efficient aspects of digital-brokerage auctions administered by Google, Facebook, and a few other platforms. The rapid and dramatic growth of digital advertising and associated commerce strongly suggests that this has been an innovative and welfare-enhancing development. Moreover, the introduction of a new integrated brokerage platform by a “small” player in the advertising market indicates there is ample opportunity to increase this welfare further.  

Interfering in brokerage operations under the unproven assumption that “monopoly rents” are being charged and that customers are being “exploited” is rhetoric unmoored from hard evidence. Furthermore, if specific platform practices are shown inefficiently to exclude potential entrants, existing antitrust law can be deployed on a case-specific basis. This approach is currently being pursued by a coalition of state attorneys general against Google (the merits of which are not relevant to this commentary).   

Even assuming for the sake of argument that there are serious competition problems in the digital-advertising market, there is no reason to believe that the arbitrary provisions and definitions found in the CTDAA would enhance welfare. Indeed, it is likely that the act would have unforeseen consequences:

  • It would lead to divestitures supervised by the U.S. Justice Department (DOJ) that could destroy efficiencies derived from efficient targeting by brokerages integrated into platforms;
  • It would disincentivize improvements in advertising brokerages and likely would reduce future welfare on both the buy and sell sides of digital advertising;
  • It would require costly recordkeeping and disclosures by covered platforms that could have unforeseen consequences for privacy and potentially reduce the efficiency of bidding practices;
  • It would establish a fund for damage payments that would encourage wasteful litigation (see next two points);
  • It would spawn a great deal of wasteful private rent-seeking litigation that would discourage future platform and brokerage innovations; and
  • It would likely generate wasteful lawsuits by rent-seeking state attorneys general (and perhaps the DOJ as well).

The legislation would ultimately harm consumers who currently benefit from a highly efficient form of targeted advertising (for more on the welfare benefits of targeted advertising, see here). Since Google continually invests in creating a better search engine (to deliver ads directly to consumers) and collects more data to better target ads (to deliver ads to specific consumers), the value to advertisers of displaying ads on Google constantly increases.

Proposing a new regulatory structure that would directly affect the operations of highly efficient auction markets is the height of folly. It ignores the findings of Nobel laureate James M. Buchanan (among others) that, to justify regulation, there should first be a provable serious market failure and that, even if such a failure can be shown, the net welfare costs of government intervention should be smaller than the net welfare costs of non-intervention.

Given the likely substantial costs of government intervention and the lack of proven welfare costs from the present system (which clearly has been associated with a growth in output), the second prong of the Buchanan test clearly has not been met.


While there are allegations of abuses in the digital-advertising market, it is not at all clear that these abuses have had a long-term negative economic impact. As shown in a study by Erik Brynjolfsson and his student Avinash Collis—recently summarized in the Harvard Business Review (Alden Abbott offers commentary here)—the consumer surplus generated by digital platforms has far outstripped the advertising and services revenues received by the platforms. The CTDAA proposal would seek to unwind much of these gains.

If the goal is to create a multitude of small, largely inefficient advertising companies that charge high fees and provide low-quality service, this bill will deliver. The market for advertising will have a far greater number of players but it will be far less competitive, since no companies will be willing to exceed the $20 billion revenue threshold that would leave them subject to the proposal’s onerous ownership standards.

If, however, the goal is to increase consumer welfare, increase rigorous competition, and cement better outcomes for advertisers and publishers, then it is likely to fail. Ownership requirements laid out in the proposal will lead to a stagnant advertising market, higher fees for all involved, and lower-quality, less-relevant ads. Government regulatory interference in highly successful and efficient platform markets are a terrible idea.

“Edinburgh, Great Britain – July 7, 2010: Statue of Adam Smith in Edinburgh in front of St. Giles Cathedral at Parliament Square.”

The interplay among political philosophy, competition, and competition law remains, with some notable exceptions, understudied in the literature. Indeed, while examinations of the intersection between economics and competition law have taught us much, relatively little has been said about the value frameworks within which different visions of competition and competition law operate.

As Ronald Coase reminds us, questions of economics and political philosophy are interrelated, so that “problems of welfare economics must ultimately dissolve into a study of aesthetics and morals.” When we talk about economics, we talk about political philosophy, and vice versa. Every political philosophy reproduces economic prescriptions that reflect its core tenets. And every economic arrangement, in turn, evokes the normative values that undergird it. This is as true for socialism and fascism as it is for liberalism and neoliberalism.

Many economists have understood this. Milton Friedman, for instance, who spent most of his career studying social welfare, not ethics, admitted in Free to Choose that he was ultimately concerned with the preservation of a value: the liberty of the individual. Similarly, the avowed purpose of Friedrich Hayek’s The Constitution of Liberty was to maximize the state of human freedom, with coercion—i.e., the opposite of freedom—described as evil. James Buchanan fought to preserve political philosophy within the economic discipline, particularly worrying that:

Political economy was becoming unmoored from the types of philosophic and institutional analysis which were previously central to the field. In its flight from reality, Buchanan feared economics was in danger of abandoning social-philosophic issues for exclusively technical questions.

— John Kroencke, “Three Essays in the History of Economics”

Against this background, I propose to look at competition and competition law from a perspective that explicitly recognizes this connection. The goal is not to substitute, but rather to complement, our comparatively broad understanding of competition economics with a better grasp of the deeper normative implications of regulating competition in a certain way. If we agree with Robert Bork that antitrust is a subcategory of ideology that reflects and reacts upon deeper tensions in our society, the exercise might also be relevant beyond the relatively narrow confines of antitrust scholarship (which, on the other hand, seem to be getting wider and wider).

The Classical Liberal Revolution and the Unshackling of Competition


When Adam Smith’s The Wealth of Nations was published in 1776, heavy economic regulation of the market through laws, by-laws, tariffs, and special privileges was the norm. Restrictions on imports were seen as protecting national wealth by preventing money from flowing out of the country—a policy premised on the conflation of money with wealth. A morass of legally backed and enforceable monopoly rights, granted either by royal decree or government-sanctioned by-laws, marred competition. Guilds reigned over tradesmen by restricting entry into the professions and segregating markets along narrow geographic lines. At every turn, economic activity was shot through with rules, restrictions, and regulations.

The Revolution in Political Economy

Classical liberals like Smith departed from the then-dominant mercantilist paradigm by arguing that nations prospered through trade and competition, and not protectionism and monopoly privileges. He demonstrated that both the seller and the buyer benefited from trade; and theorized the market as an automatic mechanism that allocated resources efficiently through the spontaneous, self-interested interaction of individuals.

Undergirding this position was the notion of the natural order, which Smith carried over from his own Theory of Moral Sentiments and which elaborated on arguments previously espoused by the French physiocrats (a neologism meaning “the rule of nature”), such as Anne Robert Jacques Turgot, François Quesnay, and Jacques Claude Marie Vincent de Gournay. The basic premise was that there existed a harmonious order of things established and maintained by means of subconscious balancing of the egoism of the individual and the greatest welfare for all.

The implications of this modest insight, which clashed directly with established mercantilist orthodoxy, were tremendous. If human freedom maximized social welfare, the justification for detailed government intervention in the economy was untenable. The principles of laissez-faire (a term probably coined by Gournay, who had been Turgot’s mentor) instead prescribed that the government should adopt a “night watchman” role, tending to modest tasks such as internal and external defense, the mediation of disputes, and certain public works that were not deemed profitable for the individual.

Freeing Competition from the Mercantilist Yoke

Smith’s general attitude also carried over to competition. Following the principles described above, classical liberals believed that price and product adjustments following market interactions among tradesmen (i.e., competition) would automatically maximize social utility. As Smith argued:

In general, if any branch of trade, or any division of labor, be advantageous to the public, the freer and more general the competition, it will always be the more so.

This did not mean that competition occurred in a legal void. Rather, Smith’s point was that there was no need to construct a comprehensive system of competition regulation, as markets would oversee themselves so long as a basic legal and institutional framework was in place and government refrained from actively abetting monopolies. Under this view, the only necessary “competition law” would be those individual laws that made competition possible, such as private property rights, contracts, unfair competition laws, and the laws against government and guild restrictions.

Liberal Political Philosophy: Utilitarian and Deontological Perspectives on Liberty and Individuality

Of course, this sort of volte face in political economy needed to be buttressed by a robust philosophical conception of the individual and the social order. Such ontological and moral theories were articulated in, among others, the Theory of Moral Sentiments and John Stuart Mill’s On Liberty. At the heart of the liberal position was the idea that undue restrictions on human freedom and individuality were not only intrinsically despotic, but also socially wasteful, as they precluded men from enjoying the fruits of the exercise of such freedoms. For instance, infringing the freedom to trade and to compete would rob the public of cheaper goods, while restrictions on freedom of expression would arrest the development of thoughts and ideas through open debate.

It is not clear whether the material or the ethical argument for freedom came first. In other words, whether classical liberalism constituted an ex-post rationalization of a moral preference for individual liberty, or precisely the reverse. The question may be immaterial, as classical liberals generally believed that the deontological and the consequentialist cases for liberty—save in the most peripheral of cases (e.g., violence against others)—largely overlapped.


In sum, classical liberalism offered a holistic, integrated view of societies, markets, morals, and individuals that was revolutionary for the time. The notion of competition as a force to be unshackled—rather than actively constructed and chaperoned—flowed organically from that account and its underlying values and assumptions. These included such values as personal freedom and individualism, along with foundational metaphysical presuppositions, such as the existence of a harmonious natural order that seamlessly guided individual actions for the benefit of the whole.

Where such base values and presumptions are eroded, however, the notion of a largely spontaneous, self-sustaining competitive process loses much of its rational, ethical, and moral legitimacy. Competition thus ceases to be tenable on its “own two feet” and must either be actively engineered and protected, or abandoned altogether as a viable organizing principle. In this sense, the crisis of liberalism the West experienced in the late 19th and early 20th centuries—which attacked the very foundations of classical liberal doctrine—can also be read as a crisis of competition.

In my next post, I’ll discuss the collectivist backlash against liberalism.