opinion: CALIFORNIA DENTAL ASSOCIATION v. FEDERAL TRADE COMMISSION
  No. 97-1625.
  Argued January 13, 1999
  Decided May 24, 1999
  Souter, J., delivered the opinion for a unanimous Court with respect to Parts I and II, and the opinion of the Court with respect to Part III, in which Rehnquist, C. J., and O’Connor, Scalia, and Thomas, JJ., joined. Breyer, J., filed an opinion concurring in part and dissenting in part, in which Stevens, Kennedy, and Ginsburg, JJ., joined, post, p. 781.
  Peter M. Sfikas argued the cause for petitioner. With him on the briefs were Scott M. Mendel, Erik F. Dyhrkopp, and Edward M. Graham.
  Deputy Solicitor respondent. With him on the brief were Solicitor General Waxman, Assistant Attorney General Klein, Paul R. Q. Wolfson, Debra A. Valentine, John F. Daly, Joanne L. Levine, and Elizabeth R. Hilder.
  Briefs of amid curiae urging reversal were filed for the American College for Advancement in Medicine by Elizabeth Toni Guarino, William C. MacLeod, and Robert A. Skitol; for the American Dental Association et al. by Jack R. Bierig and Virginia A. Seitz; for the American Soeiety of Association Executives by Jerry A. Jacobs, Paul M. Smith, and Nory Miller; and for the National Collegiate Athletic Association by Roy T. Englert, Jr., Donald M. Falk, Gregory L. Curtner, Stephen M. Shapiro, Michael W. McConnell, Michele L. Odorizzi, and Elsa Kircher Cole. the State of
  A brief of amici curiae Arizona et al. by James E. Ryan, Attorney General of Illinois, Don R. Sampen, Assistant Attorney General, Betty D. Montgomery, Attorney General of Ohio, and Thomas G. Lindgren, Assistant Attorney General, and by the Attorneys General for then- respective jurisdictions as follows: Grant Woods of Arizona, Winston Bryant of Arkansas, Daniel E. Lungren of California, Rickard Blumenthal of Connecticut, M. Jane Brady of Delaware, Robert A Butterworth of Florida, Alan G. Lance of Idaho, Thomas J. Miller of Iowa, J. Joseph Curran, Jr., of Maryland, Frank J. Kelley of Michigan, HubeH H. Humphrey III of Minnesota, Mike Moore of Mississippi, Frankie Sue Del Papa of Nevada, Philip T. McLaughlin of New Hampshire, Michael F. Easley of North Carolina, W. A. Drew Edmondson of Oklahoma, Hardy Myers of Oregon, D. Michael Fisher of Pennsylvania, José A Fuentes-Agostini of Puerto Rico, Jeffrey B. Pine of Rhode Island, John Knox Walkup of Tennessee, Jan Graham of Utah, William H. Sor-rell of Vermont, Christine O. Gregoire of Washington, Darrell V. McGraiv, Jr., of West Virginia, and James E. Doyle of Wisconsin.
  James S. Turner and Betsy E. Lehrfeld filed a brief for the Consumer Dental Choice Project of the National Institute for Science, Law and Public Policy, Inc., as amicus curiae.
  Justice Souter
  delivered the opinion of the Court.
  There are two issues in this case: whether the jurisdiction of the Federal Trade Commission extends to the California Dental Association (CDA), a nonprofit professional association, and whether a “quick look” sufficed to justify finding that certain advertising restrictions adopted by the CDA violated the antitrust laws. We hold that the Commission’s jurisdiction under the Federal Trade Commission Act (FTC Act) extends to an association that, like the CDA, provides substantial economic benefit to its for-profit members, but that where, as here, any anticompetitive effects of given restraints are far from intuitively obvious, the rule of reason demands a more thorough enquiry into the consequences of those restraints than the Court of Appeals performed.
  HH
  The CDA is a voluntary nonprofit association of local dental societies to which some 19,000 dentists belong, including about three-quarters of those practicing in the State. In re California Dental Assn., 121 P. T. C. 190, 196-197 (1996). The CDA is exempt from federal income tax under 26 U. S. C. § 501(c)(6), covering “[bjusiness leagues, chambers of commerce, real-estate boards, [and] boards of trade,” although it has for-profit subsidiaries that give its members advantageous access to various sorts of insurance, including liability coverage, and to financing for their real estate, equipment, cars, and patients’ bills. The CDA lobbies and litigates in its members’ interests, and conducts marketing and public relations campaigns for their benefit. 128 F. 3d 720, 723 (CA9 1997).
  The dentists who belong to the CDA through these associations agree to abide by a Code of Ethics (Code) including the following § 10:
  “Although any dentist may advertise, no dentist shall advertise or solicit patients in any form of communication in a manner that is false or misleading in any material respect. In order to properly serve the public, dentists should represent themselves in a manner that contributes to the esteem of the public. Dentists should not misrepresent their training and competence in any way that would be false or misleading in any material respect.” App. 33.
  The CDA has issued a number of advisory opinions interpreting this section, and through separate advertising guidelines intended to help members comply with the Code and with state law the CDA has advised its dentists of disclosures they must make under state law when engaging in discount advertising.
  Responsibility for enforcing the Code rests in the first instance with the local dental societies, to which applicants for CDA membership must submit copies of their own advertisements and those of their employers or referral services to assure compliance with the Code. The local societies also actively seek information about potential Code violations by applicants or CDA members. Applicants who refuse to withdraw or revise objectionable advertisements may be denied membership; and members who, after a hearing, remain similarly recalcitrant are subject to censure, suspension, or expulsion from the CDA. 128 F. 3d, at 724.
  The Commission brought a leging that it applied its guidelines so as to restrict truthful, nondeceptive advertising, and so violated § 5 of the FTC Act, 38 Stat. 717, 15 U. S. C. § 45. The complaint alleged that the CDA had unreasonably restricted two types of advertising: price advertising, particularly discounted fees, and advertising relating to the quality of dental services. Complaint ¶ 7. An Administrative Law Judge (ALJ) held the Commission to have jurisdiction over the CDA, which, the ALJ noted, had itself “stated that a selection of its programs and services has a potential value to members of between $22,739 and $65,127,” 121 F. T. C., at 207. He found that, although there had been no proof that the CDA exerted market power, no such proof was required to establish an antitrust violation under In re Mass. Bd. of Registration in Optometry, 110 F. T. C. 549 (1988), since the CDA had unreasonably prevented members and potential members from using truthful, nondeceptive advertising, all to the detriment of both dentists and consumers of dental services. He accordingly found a violation of § 5 of the FTC Act. 121 F. T. C., at 272-273.
  The Commission except for his conclusion that the CDA lacked market power, with which the Commission disagreed. The Commission treated the CDA’s restrictions on discount advertising as illegal per se. 128 F. 3d, at 725. In the alternative, the Commission held the price advertising (as well as the nonprice) restrictions to be violations of the Sherman and FTC Acts under an abbreviated rule-of-reason analysis. One Commissioner concurred separately, arguing that the Commission should have applied the Mass. i3d. standard, not the per se analysis, to the limitations on price advertising. Another Commissioner dissented, finding the evidence insufficient to show either that the restrictions had an anticompetitive effect under the rule of reason, or that the CDA had market power. 128 F. 3d, at 725.
  Court of Appeals for the Ninth Circuit affirmed, sustaining the Commission’s assertion of jurisdiction over the CDA and its ultimate conclusion on the merits. Id., at 730. The court thought it error for the Commission to have applied per se analysis to the price advertising restrictions, finding analysis under the rule of reason required for all the restrictions. But the Court of Appeals went on to explain that the Commission had properly
  “applied an abbreviated, or 'quick look,’ rule of reason analysis designed for restraints that are not per se un-lawffil but are sufficiently anticompetitive on their face that they do not require a full-blown rule of reason inquiry. See [National Collegiate Athletic Assn. v. Board of Regents of Univ. of Okla., 468 U. S. 85, 109-110, and n. 39 (1984)] ('The essential point is that the rule of reason can sometimes be applied in the twinkling of an eye.’ [Ibid, (citing P. Areeda, The “Rule of Reason” in Antitrust Analysis: General Issues 37-38 (Federal Judicial Center, June 1981) (parenthetical omitted)).] It allows the condemnation of a 'naked restraint’ on price or output without an 'elaborate industry analysis.’ Id., at 109.” Id., at 727.
  The Court of Appeals thought truncated rule-of-reason analysis to be in order for several reasons. As for the restrictions on discount advertising, they “amounted in practice to a fairly 'naked’ restraint on price competition itself,” ibid. The CDA’s procompetitive justification, that the restrictions encouraged disclosure and prevented false and misleading advertising, carried little weight because “it is simply infeasible to disclose all of the information that is required,” id., at 728, and “the record provides no evidence that the rule has in fact led to increased disclosure and transparency of dental pricing,” ibid. As to nonpriee advertising restrictions, the court said that
  “[t]hese restrictions are in effect a form of output limitation, as they restrict the supply of information about individual dentists’ services. See Areeda & Hoven-kamp, Antitrust Law ¶ 1505 at 693-94 (Supp. 1997).... The restrictions may also affect output more directly, as quality and comfort advertising may induce some customers to obtain nonemergeney care when they might not otherwise do so. . . . Under these circumstances, we think that the restriction is a sufficiently naked restraint on output to justify quick look analysis.” Ibid.
  The Court of Appeals went on to hold that the Commission’s findings with respect to the CDA’s agreement and intent to restrain trade, as well as on the effect of the restrictions and the existence of market power, were all supported by substantial evidence. Id., at 728-730. In dissent, Judge Real took the position that the Commission’s jurisdiction did not cover the CDA as a nonprofit professional association engaging in no commercial operations. Id., at 730. But even assuming jurisdiction, he argued, full-bore rule-of-reason analysis was called for, since the disclosure requirements were not naked restraints and neither fixed prices nor banned nondeceptive advertising. Id., at 730-731.
  We granted certiorari to resolve conflicts among the Circuits on the Commission’s jurisdiction over a nonprofit professional association and the occasions for abbreviated rule-of-reason analysis. 524 U. S. 980 (1998). We now vacate the judgment of the Court of Appeals and remand.
  W
  The FTC Act gives the Commission authority over “persons, partnerships, or corporations,” 15 U. S. C. § 45(a)(2), and defines “corporation” to include “any company ... or association, incorporated or unincorporated, without shares of capital or capital stock or certificates of interest, except partnerships, which is organized to carry on business for its own profit or that of its members,” §44. Although the Circuits have not agreed on the precise extent of this definition, see n. 4, supra, the Commission has long held that some circumstances give it jurisdiction over an entity that seeks no profit for itself. While the Commission has claimed to have jurisdiction over a nonprofit entity if a substantial part of its total activities provides pecuniary benefits to its members, see In re American Medical Assn., 94 F. T. C. 701, 983-984 (1980), respondent now advances the slightly different formulation that the Commission has jurisdiction “over anti-competitive practices by nonprofit associations whose activities provid[e] substantial economic benefits to their for-profit members’ businesses.” Brief for Respondent 20.
  urges deference to this interpretation of the Commission’s jurisdiction as reasonable. Id., at 25-26 (citing Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., 467 U. S. 837 (1984), Mississippi Power & Light Co. v. Mississippi ex rel. Moore, 487 U. S. 354, 380-382 (1988) (Scalia, J., concurring) (Chevron deference applies to agency's interpretation of its own statutory jurisdiction)). But we have no occasion to review the call for deference here, the interpretation urged in respondent’s brief being clearly the better reading of the statute under ordinary principles of construction.
  The FTC Act is at pains to an ganized to carry on business for its own profit,” 15 U. S. C. §44, but also one that carries on business for the profit “of its members,” ibid. While such a supportive organization may be devoted to helping its members in ways beyond immediate enhancement of profit, no one here has claimed that such an entity must devote itself single-mindedly to the profit of others. It could, indeed, hardly be supposed that Congress intended such a restricted notion of covered supporting organizations, with the opportunity this would bring with it for avoiding jurisdiction where the purposes of the FTC Act would obviously call for asserting it.
  Just as the FTC Act does not require that a organization must devote itself entirely to its members' profits, neither does the Act say anything about how much of the entity’s activities must go to raising the members’ bottom lines. There is accordingly no apparent reason to let the statute’s application turn on meeting some threshold percentage of activity for this purpose, or even satisfying a softer formulation calling for a substantial part of the nonprofit entity’s total activities to be aimed at its members’ pecuniary benefit. To be sure, proximate relation to lucre must appear; the FTC Act does not cover all membership organizations of profit-making corporations without more, and an organization devoted solely to professional education may lie outside the FTC Act’s jurisdictional reach, even though the quality of professional services ultimately affects the profits of those who deliver them.
  There is no line drawing exercise in this case, however, where the CDA’s contributions to the profits of its individual members are proximate and apparent. Through for-profit subsidiaries, the CDA provides advantageous insurance and preferential financing arrangements for its members, and it engages in lobbying, litigation, marketing, and public relations for the benefit of its members’ interests. This congeries of activities confers far more than de minimis or merely presumed economic benefits on CDA members; the economic benefits conferred upon the CDA’s profit-seeking professionals plainly fall within the object of enhancing its members’ “profit,” which the FTC Act makes the jurisdictional toueh-stone. There is no difficulty in concluding that the Commission has jurisdiction over the CDA.
  The logic and purpose result. The FTC Act directs the Commission to “prevent” the broad set of entities under its jurisdiction “from using unfair methods of competition in or affecting commerce and unfair or deceptive acts or practices in or affecting commerce.” 15 U. S. C. § 45(a)(2). Nonprofit entities organized on behalf of for-profit members have the same capacity and derivatively, at least, the same incentives as for-profit organizations to engage in unfair methods of competition or unfair and deceptive acts. It may even be possible that a nonprofit entity up to no good would have certain advantages, not only over a for-profit member but over a for-profit membership organization as well; it would enjoy the screen of superficial disinterest while devoting itself to serving the interests of its members without concern for doing more than breaking even.
  Nor, contrary to petitioner’s argument, history inconsistent with this interpretation of the Commission’s jurisdiction. Although the versions of the FTC Act first passed by the House and the Senate defined “corporation” to refer only to incorporated, joint stock, and share-capital companies organized to carry on business for profit, see H. R. Conf. Rep. No. 1142, 63d Cong., 2d Sess., 11, 14 (1914), the Conference Committee subsequently revised the definition to its present form, an alteration that indicates an intention to include nonprofit entities. And the legislative history, like the text of the FTC Act, is devoid of any hint at an exemption for professional associations as such.
  Commission had jurisdiction to pursue the claim here, and turn to the question whether the Court of Appeals devoted sufficient analysis to sustain the claim that the advertising restrictions promulgated by the CDA violated the FTC Act.
  The Court of Appeals treated as distinct questions the sufficiency of the analysis of anticompetitive effects and the substantiality of the evidence supporting the Commission’s conclusions. Because we decide that the Court of Appeals erred when it held as a matter of law that quick-look analysis was appropriate (with the consequence that the Commission’s abbreviated analysis and conclusion were sustainable), we do not reach the question of the substantiality of the evidence supporting the Commission’s conclusion.
  In National Collegiate Athletic Assn. v. Board of Regents of Univ. of Okla., 468 U. S. 85 (1984), we held that a “naked restraint on price and output requires some competitive jus-tifieation even in the absence of a detailed market analysis.” Id., at 110. Elsewhere, we held that “no elaborate industry analysis is required to demonstrate the anticompetitive character of” horizontal agreements among competitors to refuse to discuss prices, National Soc. of Professional Engineers v. United States, 435 U. S. 679, 692 (1978), or to withhold a particular desired service, FTC v. Indiana Federation of Dentists, 476 U. S. 447, 459 (1986) (quoting National Soc. of Professional Engineers, supra, at 692). In each of these eases, which have formed the basis for what has come to be called abbreviated or “quick-look” analysis under the rule of reason, an observer with even a rudimentary understanding of economics could conclude that the arrangements in question would have an anticompetitive effect on customers and markets. In National Collegiate Athletic Assn., the league's television plan expressly limited output (the number of games that could be televised) and fixed a minimum price. 468 U. S., at 99-100. In National Soc. of Professional Engineers, the restraint was “an absolute ban on competitive bidding.” 435 U. S., at 692. In Indiana Federation of Dentists, the restraint was “a horizontal agreement among the participating dentists to withhold from their customers a particular service that they desire.” 476 U. S., at 459. As in such cases, quick-look analysis carries the day when the great likelihood of anticompetitive effects can easily be ascertained. See Law v. National Collegiate Athletic Assn., 134 F. 3d 1010, 1020 (CA10 1998) (explaining that quick-look analysis applies “where a practice has obvious anticompeti-tive effects”); Chicago Professional Sports Limited Partnership v. National Basketball Assn., 961 F. 2d 667, 674-676 (CA7 1992) (finding quick-look analysis adequate after assessing and rejecting logic of proffered procompetitive justifications); cf. United States v. Brown University, 5 F. 3d 658, 677-678 (CA3 1993) (finding full rule-of-reason analysis required where universities sought to provide financial aid to needy students and noting by way of contrast that the agree-merits in National Soc. of Professional Engineers and Indiana Federation of Dentists “embodied a strong economic self-interest of the parties to them”).
  case us, however, fails to present a situation in which the likelihood of anticompetitive effects is comparably obvious. Even on Justice Breyer’s view that bars on truthful and verifiable price and quality advertising are prima facie anticompetitive, see post, at 784-785 (opinion concurring in part and dissenting in part), and place the burden of procompetitive justification on those who agree to adopt them, the very issue at the threshold of this case is whether professional price and quality advertising is sufficiently verifiable in theory and in fact to fall within such a general rule. Ultimately our disagreement with Justice Breyer turns on our different responses to this issue. Whereas he accepts, as the Ninth Circuit seems to have done, that the restrictions here were like restrictions on advertisement of price and quality generally, see, e. g., post, at 785, 787, 790, it seems to us that the CDA’s advertising restrictions might plausibly be thought to have a net procom-petitive effect, or possibly no effect at all on competition. The restrictions on both discount and nondiscount advertising are, at least on their face, designed to avoid false or deceptive advertising in a market characterized by striking disparities between the information available to the professional and the patient. Cf. Carr & Mathewson, The Economics of Law Firms: A Study in the Legal Organization of the Firm, 33 J. Law & Econ. 307,309 (1990) (explaining that in a market for complex professional services, “inherent asymmetry of knowledge about the product” arises because “professionals supplying the good are knowledgeable [whereas] consumers demanding the good are uninformed”); Akerlof, The Market for “Lemons”: Quality Uncertainty and the Market Mechanism, 84 Q. J. Econ. 488 (1970) (pointing out quality problems in market characterized by asymmetrical information). In a market for professional services, in which advertising is relatively rare and the comparability of service packages not easily established, the difficulty for customers or potential competitors to get and verify information about the price and availability of services magnifies the dangers to competition associated with misleading advertising. What is more, the quality of professional services tends to resist either calibration or monitoring by individual patients or clients, partly because of the specialized knowledge required to evaluate the services, and partly because of the difficulty in determining whether, and the degree to which, an outcome is attributable to the quality of services (like a poor job of tooth filling) or to something else (like a very tough walnut). See Leland, Quacks, Lemons, and Licensing: A Theory of Minimum Quality Standards, 87 J. Pol. Econ. 1328,1330 (1979); 1 B. Furrow, T. Greaney, S. Johnson, T. Jost, & R. Schwartz, Health Law §3-1, p. 86 (1995) (describing the common view that “the lay public is incapable of adequately evaluating the quality of medical services”). Patients’ attachments to particular professionals, the rationality of which is difficult to assess, complicate the picture even further. Cf. Evans, Professionals and the Production Function: Can Competition Policy Improve Efficiency in the Licensed Professions?, in Occupational Licensure and Regulation 235-236 (S. Rotten-berg ed. 1980) (describing long-term relationship between professional and client not as “a series of spot contracts” but rather as “a long-term agreement, often implicit, to deal with each other in a set of future unspecified or incompletely specified circumstances according to certain rules,” and adding that "CQt is not clear how or if these [implicit contracts] can be reconciled with the promotion of effective price competition in individual spot markets for particular services”). The existence of such significant challenges to informed deci-sionmaking by the customer for professional services immediately suggests that advertising restrictions arguably protecting patients from misleading or irrelevant advertising call for more than cursory treatment as obviously comparable to classic horizontal agreements to limit output or price competition.
  The explanation proffered by the Court of Appeals for the likely anticompetitive effect of the CDAs restrictions on discount advertising began with the unexceptionable statements that “price advertising is fundamental to price competition,” 128 F. 3d, at 727, and that “[r]estrictions on the ability to advertise prices normally make it more difficult for consumers to find a lower price and for dentists to compete on the basis of price,” ibid, (citing Bates v. State Bar of Ariz., 433 U. S. 350, 364 (1977); Morales v. Trans World Airlines, Inc., 504 U.S. 374, 388 (1992)). The court then acknowledged that, according to the CDA, the restrictions nonetheless furthered the “legitimate, indeed proeompetitive, goal of preventing false and misleading price advertising.” 128 F. 3d, at 728. The Court of Appeals might, at this juncture, have recognized that the restrictions at issue here are very far from a total ban on price or discount advertising, and might have considered the possibility that the particular restrictions on professional advertising could have different effects from those “normally5’ found in the commercial world, even to the point of promoting competition by reducing the occurrence of unverifiable and misleading across-the-board discount advertising. Instead, the Court of Appeals confined itself to the brief assertion that the “CDA’s disclosure requirements appear to prohibit aeross-the-board discounts because it is simply infeasible to disclose all of the information that is required,” ibid., followed by the observation that “the record provides no evidence that the rule has in fact led to increased disclosure and transparency of dental pricing,” ibid.
  But these text and describe no anticompetitive effects. Assuming that the record in fact supports the conclusion that the CDA disclosure rules essentially bar advertisement of across-the-board discounts, it does not obviously follow that such a ban would have a net anticompetitive effect here. Whether advertisements that announced discounts for, say, first-time customers, would be less effective at conveying information relevant to competition if they listed the original and discounted prices for checkups, X-rays, and fillings, than they would be if they simply specified a percentage discount across the board, seems to us a question susceptible to empirical but not a priori analysis. In a suspicious world, the discipline of specific example may well be a necessary condition of plausibility for professional claims that for all practical purposes defy comparison shopping. It is also possible in principle that, even if aeross-the-board discount advertisements were more effective in drawing customers in the short run, the recurrence of some measure of intentional or accidental misstatement due to the breadth of their claims might leak out over time to make potential patients skeptical of any such across-the-board advertising, so undercutting the method’s effectiveness. Cf. Akerlof, 84 Q. J. Eeon., at 495 (explaining that “dishonest dealings tend to drive honest dealings out of the market”). It might be, too, that across-the-board discount advertisements would continue to attract business indefinitely, but might work precisely because they were misleading customers, and thus just because their effect would be anticompetitive, not procompetitive. Put another way, the CDA’s rule appears to reflect the prediction that any costs to competition associated with the elimination of across-the-board advertising will be outweighed by gains to consumer information (and hence competition) created by discount advertising that is exact, accurate, and more easily verifiable (at least by regulators). As a matter of economics this view may or may not be correct, but it is not implausible, and neither a court nor the Commission may initially dismiss it as presumptively wrong.
  In theory, it is true, the Court of Appeals neither ruled out the plausibility of some procompetitive support for the CDA’s requirements nor foreclosed the utility of an eviden-tiary discussion on the point. The court indirectly acknowledged the plausibility of procompetitive justifications for the CDA’s position when it stated that “the record provides no evidence that the rule has in fact led to increased disclosure and transparency of dental pricing,” 128 F. 3d, at 728. But because petitioner alone would have had the incentive to introduce such evidence, the statement sounds as though the Court cf Appeals may have thought it was justified without further analysis to shift a burden to the CDA to adduce hard evidence of the proeompetitive nature of its policy; the court’s adversión to empirical evidence at the moment of this implicit burden shifting underscores the leniency of its enquiry into evidence of the restrictions’ anticompetitive effects.
  The Court of Appeals was comparably ing the sufficiency of abbreviated rule-of-reason analysis as to the nonpriee advertising restrictions. The court began with the argument that “[t]hese restrictions are in effect a form of output limitation, as they restrict the supply of information about individual dentists’ services.” Ibid, (citing P. Areeda & H. Hovenkamp, Antitrust Law ¶ 1505, pp. 693-694 (1997 Supp.)). Although this sentence does indeed appear as cited, it is puzzling, given that the relevant output for antitrust purposes here is presumably not information or advertising, but dental services themselves. The question is not whether the universe of possible advertisements has been limited (as assuredly it has), but whether the limitation on advertisements obviously tends to limit the total delivery of dental services. The court came closest to addressing this latter question when it went on to assert that limiting advertisements regarding quality and safety “prevents dentists from fully describing the package of services they offer,” 128 F. 3d, at 728, adding that “[t]he restrictions may also affect output more directly, as quality and comfort advertising may induce some customers to obtain nonemer-gency care when they might not otherwise do so,” ibid. This suggestion about output is also puzzling. If quality advertising actually induces some patients to obtain more care than they would in its absence, then restricting such advertising would reduce the demand for dental services, not the supply; and it is of course the producers’ supply of a good in relation to demand that is normally relevant in determining whether a producer-imposed output limitation has the anti-competitive effect of artificially raising prices, see General Leaseways, Inc. v. National Truck Leasing Assn., 744 P. 2d 588, 594-595 (CA7 1984) (“An agreement on output also equates to a price-fixing agreement. If firms raise price, the market’s demand for their product will fall, so the amount supplied will fall too — in other words, output will be restricted. If instead the firms restrict output directly, price will as mentioned rise in order to limit demand to the reduced supply. Thus, with exceptions not relevant here, raising price, reducing output, and dividing markets have the same anticompetitive effects”).
  of Appeals acknowledged the CDA’s view that “claims about quality are inherently unverifiable and therefore misleading,” 128 F. 3d, at 728, it responded that this concern “does not justify banning all quality claims without regard to whether they are, in fact, false or misleading,” ibid. As a result, the court said, “the restriction is a sufficiently naked restraint on output to justify quick look analysis.” Ibid. The court assumed, in these words, that some dental quality claims may escape justifiable censure, because they are both verifiable and true. But its implicit assumption fails to explain why it gave no weight to the countervailing, and at least equally plausible, suggestion that restricting difficult-to-verify claims about quality or patient comfort would have a procompetitive effect by preventing misleading or false claims that distort the market. It is, indeed, entirely possible to understand the CDA’s restrictions on unverifiable quality and comfort advertising as nothing more than a procompetitive ban on puffery, ef. Bates, 438 U. S., at 366 (claims relating to the quality of legal services “probably are not susceptible of precise measurement or verification and, under some circumstances, might well be deceptive or misleading to the public, or even false”); id., at 383-384 (“[Advertising claims as to the quality of services ... are not susceptible of measurement or verification; accordingly, such claims may be so likely to be misleading as to warrant restriction”), notwithstanding Justice Breyer’s citation (to a Commission discussion that never faces the issue of the unverifiability of professional quality claims, raised in Bates), post, at 785.
  The point have the procompetitive effect claimed by the CD A; it is possible that banning quality claims might have no effect at all on competitiveness if, for example, many dentists made very much the same sort of claims. And it is also of course possible that the restrictions might in the final analysis be anti-competitive. The point, rather, is that the plausibility of competing claims about the effects of the professional advertising restrictions rules out the indulgently abbreviated review to which the Commission’s order was treated. The obvious anticompetitive effect that triggers abbreviated analysis has not been shown.
  In light of our focus on the adequacy of the Court of Appeals’s analysis, Justice Breyer’s thorough-going, de novo antitrust analysis contains much to impress on its own merits but little to demonstrate the sufficiency of the Court of Appeals’s review. The obligation to give a more deliberate look than a quick one does not arise at the door of this Court and should not be satisfied here in the first instance. Had the Court of Appeals engaged in a painstaking discussion in a league with Justice Breyer’s (compare his 14 pages with the Ninth Circuit’s 8), and had it confronted the comparability of these restrictions to bars on clearly verifiable advertising, its reasoning might have sufficed to justify its conclusion. Certainly Justice Breyer’s treatment of the antitrust issues here is no “quick look,” Lingering is more like it, and indeed Justice Breyer, not surprisingly, stops short of endorsing the Court of Appeals’s discussion as adequate to the task at hand.
  Saying here that the Court of Appeals’s conclusion at least required a more extended examination of the possible factual underpinnings than it received is not, of course, necessarily to call for the fullest market analysis. Although we have said that a challenge to a “naked restraint on price and output” need not be supported by “a detailed market analysis” in order to “requirfe] some competitive justification,” National Collegiate Athletic Assn., 468 U. S., at 110, it does not follow that every ease attacking a less obviously anticompeti-tive restraint (like this one) is a candidate for plenary market examination. The truth is that our categories of analysis of anticompetitive effect are less fixed than terms like “per se,” “quick look,” and “rule of reason” tend to make them appear. We have recognized, for example, that “there is often no bright line separating per se from Rule of Reason analysis,” since “considerable inquiry into market conditions” may be required before the application of any so-called “per se” condemnation is justified. Id., at 104, n. 26. “[Wjhether the ultimate finding is the product of a presumption or actual market analysis, the essential inquiry remains the same— whether or not the challenged restraint enhances competition.” Id., at 104. Indeed, the scholar who enriched antitrust law with the metaphor of “the twinkling of an eye” for the most condensed rule-of-reason analysis himself cautioned against the risk of misleading even in speaking of a “spectrum” of adequate reasonableness analysis for passing upon antitrust claims: “There is always something of a sliding scale in appraising reasonableness, but the sliding scale formula deceptively suggests greater precision than we can hope for. . . . Nevertheless, the quality of proof required should vary with the circumstances.” P. Areeda, Antitrust Law f 1507, p. 402 (1986). At the same time, Professor Areeda also emphasized the necessity, particularly great in the quasi-common law realm of antitrust, that courts explain the logic of their conclusions. “By exposing their reasoning, judges ... are subjected to others’ critical analyses, which in turn can lead to better understanding for the future.” Id., ¶ 1500, at 364. As the circumstances here demonstrate, there is generally no categorical line to be drawn between restraints that give rise to an intuitively obvious inference of anticompetitive effect and those that call for more detailed treatment. What is required, rather, is an enquiry meet for the case, looking to the circumstances, details, and logic of a restraint. The object is to see whether the experience of the market has been so clear, or necessarily will be, that a confident conclusion about the principal tendency of a restriction will follow from a quick (or at least quicker) look, in place of a more sedulous one. And of course what we see may vary over time, if rule-of-reason analyses in case after ease reach identical conclusions. Por now, at least, a less quick look was required for the initial assessment of the tendency of these professional advertising restrictions. Because the Court of Appeals did not scrutinize the assumption of relative anticompetitive tendencies, we vacate the judgment and remand the case for a fuller consideration of the issue.
  It is so ordered.
  The advisory opinions, which substantially mirror parts of the California Business and Professions Code, see Cal. Bus. & Prof. Code Ann. §§ 651, 1680 (West 1999), include the following propositions:
  “A statement or claim is false or misleading in any material respect when it:
  “a. contains a misrepresentation of fact;
  “b. is likely to mislead or deceive because in context it makes only a partial disclosure of relevant facts;
  “e. is intended or is likely to create false or unjustified expectations of favorable results and/or costs;
  "d. relates to fees for specific types of services without fully and specifically disclosing all variables and other relevant factors;
  “e. contains other representations or implications that in reasonable probability will cause an ordinarily prudent person to misunderstand or be deceived.
  “Any communication or advertisement which refers to the cost of dental services shall be exact, without omissions, and shall make each service clearly identifiable, without the use of such phrases as ‘as low as,’ ‘and up,’ ‘lowest prices,’ or words or phrases of similar import.
  which refers to the cost of dental services and uses words of comparison or relativity — for example, ‘low fees’ — must be based on verifiable data substantiating the comparison or statement of relativity. The burden shall be on the dentist who advertises in such terms to establish the accuracy of the comparison or statement of relativity.”
  as to the quality of services are not susceptible to measurement or verification; accordingly, such claims are likely to be false or misleading in any material respect.” 128 F. 3d 720,723-724 (CA9 1997) (some internal quotation marks
  The disclosures include:
  “1. The dollar amount of the nondiseounted fee for the service!.]
  amount of the discount fee or the percentage of the discount for the specific service!.]
  length of time that the discount will be offered!.] '
  “4. Verifiable fees!.]
  discount or any other terms and conditions or restrictions for qualifying for the discount.” Id., at 724.
  The FTC Act’s prohibition of unfair competition and deceptive acts or practices, 15 U. S. C. § 45(a)(1), overlaps the scope of §1 of the Sherman Act, 15 U. S. C. § 1, aimed at prohibiting restraint of trade, FTC v. Indiana Federation of Dentists, 476 U. S. 447, 454-455 (1986), and the Commission relied upon Sherman Act law in adjudicating this ease, In re California Dental Assn., 121 F. T. C. 190, 292, n. 5 (1996).
  Compare In re American Medical Assn., 94 F. T. C. 701, 983-984, aff’d, 638 F. 2d 443 (CA2 1980), aff'd by an equally divided Court, 455 U. S. 676 (1982) (per curiam), and FTC v. National Comm’n on Egg Nutrition, 517 F. 2d 485, 487-488 (CA7 1975), with Community Blood Bank v. FTC, 405 F. 2d 1011, 1017 (CA8 1969).
  Cf. Bogan v. Hodgkins, 166 F. 3d 509, 514, and n. 6 (CA2 1999); United States v. Brown University, 5 F. 3d 658, 669 (CA3 1993); Chicago Professional Sports Limited Partnership v. National Basketball Assn., 961 F. 2d 667,674-676 (CA7 1992); Law v. National Collegiate Athletic Assn., 134 F. 3d 1010, 1020 (CA10 1998); U S. Healthcare, Inc. v. Healthsource, Inc., 986 F. 2d 589, 594-595 (CA1 1993).
  This conclusion is consistent with holdings by a number of Courts of Appeals. In FTC v. National Comm’n on Egg Nutrition, the Court of Appeals held that a nonprofit association "organized for the profit of the egg industry,” 517 F. 2d, at 488, fell within the Commission’s jurisdiction. In American Medical Assn. v. FTC, 638 F. 2d 443 (CA2 1980), the Court of Appeals held that the “business aspects,” id., at 448, of the AJVLA’s activities brought it within the Commission’s reach. These cases are consistent with our conclusion that an entity organized to carry on activities that will confer greater than de minimis or presumed economic benefits on profit-seeking members certainly falls within the Commission’s jurisdiction. In Community Blood Bank v. FTC, the Court of Appeals addressed the question whether the Commission had jurisdiction over a blood bank and an association of hospitals. It held that “the question of the jurisdiction over the corporations or other associations involved should be determined on an ad hoc basis,” 405 F. 2d, at 1018, and that the Commission’s jurisdiction extended to “any legal entity without shares of capital which engages in business for profit within the traditional meaning of that language,” ibid, (emphasis deleted). The Court of Appeals also said that “Recording to a generally accepted definition ‘profit’ means gain from business or investment over and above expenditures, or gain made on business or investment where both receipts or payments are taken into account,” id., at 1017, although in the same breath it noted that the term’s “meaning must be derived from the context in which it is used,” id., at 1016. Our decision here is fully consistent with Community Blood Bank, because the CDA contributes to the profits of at least some of its members, even on a restrictive definition of profit as gain above expenditures. (It should go without saying that the FTC Act does not require for Commis.sion jurisdiction that members of an entity turn a profit on their membership, but only that the entity be organized to carry on business for members’ profit.) Nonetheless, we do not, and indeed, on the facts here, could not, decide today whether the Commission has jurisdiction over nonprofit organizations that do not confer profit on for-profit members but do, for example, show annual income surpluses, engage in significant commerce, or compete in relevant markets with for-profit players. We therefore do not foreclose the possibility that various paradigms of profit might fall within the ambit of the FTC Act. Nor do we decide whether a purpose of contributing to profit only in a presumed sense, as by enhancing professional educational efforts, would implicate the Commission's jurisdiction.
  A letter from Bureau of Corporations Commissioner Joseph E. Davies to Senator Francis G. Newlands, the bill’s sponsor and a member of the Conference Committee, written August 8, 1914, before the Conference Committee revisions, included a memorandum dated August 7,1914, that expressed concern that the versions of the bill passed by the House and the Senate would not extend jurisdiction to purportedly nonprofit organizations, which might “furnish convenient vehicles for common understandings looking to the limitation of output and the fixing of prices contrary to law." Trade Commission Bill: Letter from the Commissioner of Corporations to the Chairman of the Senate Comm, on Interstate Commerce, Transmitting Certain Suggestions Relative to the Bill (H. R. 15613) to Create a Federal Trade Commission, 63d Cong., 2d Sess., 3 (1914).
  on remand it can effectively assess the Commission’s decision for substantial evidence on the record, or whether it must remand to the Commission for a more extensive rule-of-reason analysis on the basis of an enhanced record.
  That false or misleading advertising has an anticompetitive effect, as that term is customarily used, has been long established. Cf. FTC v. Algoma Lumber Co., 291 U. S. 67, 79-80 (1934) (finding a false advertisement to be unfair competition).
  «The fact that a restraint operates upon a profession as distinguished from a business is, of course, relevant in determining whether that particular restraint violates the Sherman Act. It would be unrealistic to view the practice of professions as interchangeable with other business activities, and automatically to apply to the professions antitrust concepts which originated in other areas. The public service aspect, and other features of the professions, may require that a particular practice, which could properly be viewed as a violation of the Sherman Act in another context, be treated differently.” Goldfarb v. Virginia, State Bar, 421 U. S. 773, 788-789, n. 17 (1975).
  Justice Breyek claims that “the Court of Appeals did consider the relevant differences.” Post, at 790. But the language he cites says nothing more than that per se analysis is inappropriate here and that “some caution” was appropriate where restrictions purported to restrict false advertising, see 128 F. 3d, at 726-727. Caution was of course appropriate, but this statement by the Court of Appeals does not constitute a consideration of the possible differences between these and other advertising restrictions.
  Justice Breyer suggests that our analysis is "of limited relevance,” post, at 791, because “[t]he basic question is whether this ... theoretically redeeming virtue in fact offsets the restrictions’ anticompetitive effects in this case,” ibid. He thinks that the Commission and the Court of Appeals “adequately answered that question,” ibid., but the absence of any empirical evidence on this point indicates that the question was not answered, merely avoided by implicit burden shifting of the kind accepted by Justice Breyer. The point is that before a theoretical claim of anticompeti-tive effects can justify shifting to a defendant the burden to show empirical evidence of procompetitive effects, as quick-look analysis in effect requires, there must be some indication that the court making the decision has properly identified the theoretical basis for the anticompetitive effects and considered whether the effects actually are anticompetitive. Where, as here, the circumstances of the restriction are somewhat complex, assumption alone will not do.
  Justice Breyer wonders if we “mea[n] this statement as an argument against the anticompetitive tendencies that flow from an agreement not to advertise service quality.” Post, at 791. But as the preceding sentence shows, we intend simply to question the logic of the Court of Appeals’s suggestion that the restrictions are anticompetitive because they somehow “affect output,” 128 F. 3d, at 728, presumably with the intent to raise prices by limiting supply while demand remains constant. We do not mean to deny that an agreement not to advertise service quality might have anticompetitive effects. We merely mean that, absent further analysis of the kind Justice Breyer undertakes, it is not possible to conclude that the net effect of this particular restriction is anticompetitive.
  The Commission said only that ““mere puffing’ deceives no one and has never been subject to regulation.” 121 F. T. C., at 318. The question here, of course, is not whether puffery may be subject to governmental regulation, but whether a professional organization may ban it.
  Other commentators have expressed similar views. See, e.g., Ko-lasky, Counterpoint: The Department of Justice’s “Stepwise” Approach Imposes Too Heavy a Burden on Parties to Horizontal Agreements, Antitrust 41,43 (spring 1998) (“[I]n applying the rule of reason, the courts, as with any balancing test, use a sliding scale to determine how much proof to require”); Piraino, Making Sense of the Rule of Reason: A New Standard for Section 1 of the Sherman Act, 47 Vand. L. Rev. 1753, 1771 (1994) (“[C]ourts will have to undertake varying degrees of inquiry depending upon the type of restraint at issue. The legality of certain restraints will be easy to determine because their competitive effects are obvious. Other restrictions will require a more detailed analysis because their competitive impact is more ambiguous”). But see Klein, A “Stepwise” Approach for Analyzing Horizontal Agreements Will Provide a Much Needed Structure for Antitrust Review, Antitrust 41, 42 (spring 1990) (examination of procompetitive justifications “is by no means a full scrutiny of the proffered efficiency justification. It is, rather, a hard look at the justification to determine if it meets the defendant’s burden of coming forward with — but not establishing — a valid efficiency justification”).
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