BARKSDALE, Circuit Judge:
In this Louisiana diversity action, American Waste & Pollution Control Company appeals the district court’s Fed.R.Civ.P. 12(b)(6) dismissal, contending that it has stated claims for both tortious interference with contract and violation of the Louisiana Unfair Trade Practices and Consumer Protection Law, La.Rev.Stat.Ann. § 51:1401, et seq. (West 1987) (UTPCPL). We AFFIRM.
I.
In January 1990, American Waste brought suit against Browning-Ferris, Inc. (BFI), seeking damages for the two foregoing claims and unjust enrichment. The complaint alleged that: the Jefferson Davis Parish Sanitary Landfill Commission was created in 1984 to construct and operate the parish landfill; in early 1987, the Commission began the process of receiving bids for the operation of the landfill, which was under construction; although bid specifications were submitted to several operators, including American Waste and BFI, American Waste was the only bidder; in November 1987, the Commission entered into a long-term agreement with American Waste, which included conditions to be satisfied by the Commission before the agreement became effective; the Commission and American Waste entered into an interim agreement to allow American Waste to operate the site, pending implementation of the long-term agreement; and after entering into the interim agreement, and in reliance on the long-term agreement, it further developed, and otherwise operated, the landfill and, in conjunction with the Commission, prepared permit modifications which were submitted to, and in part later ratified by, the Department of Environmental Quality.
American Waste further alleged that in January 1989, BFI, with knowledge of the contract between American Waste and the Commission, submitted proposals to the Commission for the operation of the landfill; and that in 1989, while American Waste and the Commission were negotiating amendments to their agreements and American Waste was operating the landfill, BFI also “offered substantial sums of money and other incentives to the COMMISSION in order to induce the COMMISSION to completely repudiate its agreement and contractual relations with AMERICAN WASTE.”
The complaint further alleged that: the long-term and interim agreements had “been the subject of litigation between the Jefferson Davis Parish Police Jury, the COMMISSION, the Town of Welsh and AMERICAN WASTE”; in May 1989, a Louisiana court “held that the agreements were invalid,” because they “required the COMMISSION to turn over the day to day control over the landfill to AMERICAN WASTE without unanimous consent of the governmental bodies which [made] up the COMMISSION”; this ruling was contrary to the agreements, which state that the Commission was to maintain such day-today control; and in July 1989, after the state court removed American Waste, the Commission entered into an agreement with BFI to operate the landfill.
In count one of its complaint, American Waste alleged that BFI’s actions “constitute[d] an intentional, unjustified and improper interference with contractual relations”; and that, as a result of this interference, the Commission breached its agreements with American Waste, causing injury to American Waste. American Waste also alleged that BFI was unjustly enriched at the expense of American Waste as a result of the intentional interference.
In the second count, American Waste alleged that during the pendency of the state litigation, the parties to it had reached an informal settlement agreement in January 1989; and that BFI, “with full knowledge that American Waste and the COMMISSION were negotiating amendments to their existing agreements, intentionally offered substantial sums of money, [1386]*1386in excess of [$5 million], and other incentives to the COMMISSION in order to induce the COMMISSION to withdraw from these settlement negotiations and to completely repudiate its agreement and contractual relations with AMERICAN WASTE,” causing the settlement to fail.
In the third count, American Waste alleged that BFI’s conduct violated the UTPCPL.
Pursuant to Rule 12(b)(6), BFI moved to dismiss the complaint for failure to state a claim upon which relief can be granted. The magistrate judge issued a report and recommendation that (1) Louisiana law did not recognize BFI’s conduct as actionable under its law of intentional interference with contract, because the Louisiana case which had recently recognized the doctrine, 9 to 5 Fashions, Inc. v. Spurney, 538 So.2d 228 (La.1989), and the cases following it, did not extend the doctrine to the facts as alleged by American Waste; (2) BFI’s actions did not provide a cause of action under the UTPCPL, because the alleged wrongful conduct did not constitute a statutory unfair trade practice; and (3) American Waste could not bring a claim for unjust enrichment, because it had not alleged all of the elements for that cause of action and the claim, if any, would lie against a party other than BFI.1
In response to the recommendation, American Waste filed objections and a supporting memorandum in district court, to which BFI responded. “[A]fter an independent review of the record and a de novo determination of the issues,” the district court held that the findings in the recommendation were correct and dismissed the action.
II.
Of course, in reviewing a Rule 12(b)(6) dismissal, the court must accept as true all well-pleaded averments and view them in the light most favorable to the plaintiff. Moreover, “we may uphold ... [a Rule 12(b)(6) dismissal] only if it appears that no relief could be granted under any set of facts that could be proved consistent with the allegations.” Baton Rouge Bldg. & Constr. Trades Council v. Jacobs Constructors, Inc., 804 F.2d 879, 881 (5th Cir.1986) (citation omitted). And, as recently held by the Supreme Court, we “review de novo a district court’s determination of state law.” Salve Regina College v. Russell, 499 U.S. -, 111 S.Ct. 1217, 1221, 113 L.Ed.2d 190 (1991).2
“When presented with an unsettled point of state law, our role under Erie R.R. Co. v. Tompkins, 304 U.S. 64, 58 S.Ct. 817, 82 L.Ed. 1188 (1938), is to determine how the [Louisiana] Supreme Court would resolve the issue if presented to it.” Coatings Mfrs., Inc. v. DPI, Inc., 926 F.2d 474, 479 (5th Cir.1991). In addition, “[w]hen making an AWe-guess in the absence of explicit guidance from the state courts, we must attempt to predict state law, not to create or modify it.” United Parcel Serv., Inc. v. Weben Indus., Inc., 794 F.2d 1005, 1008 (5th Cir.1986) (citing Jackson v. Johns-Manville Sales Corp., 781 F.2d 394, 396-98 (5th Cir.1986) (en banc)). “[W]e are not free to fashion new theories of recovery under Louisiana law.” Pittman v. Dow Jones & Co., 834 F.2d 1171, 1171 (5th Cir.1987).
A.
In Spurney, the Louisiana Supreme Court recognized a very narrow cause of action for tortious interference with contracts. The Louisiana World Exhibition, Inc. (LWE), contracted with 9 to 5 Fashions to supply uniforms for the fair employees. After the fair, 9 to 5 was unable to collect under the contract, be[1387]
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BARKSDALE, Circuit Judge:
In this Louisiana diversity action, American Waste & Pollution Control Company appeals the district court’s Fed.R.Civ.P. 12(b)(6) dismissal, contending that it has stated claims for both tortious interference with contract and violation of the Louisiana Unfair Trade Practices and Consumer Protection Law, La.Rev.Stat.Ann. § 51:1401, et seq. (West 1987) (UTPCPL). We AFFIRM.
I.
In January 1990, American Waste brought suit against Browning-Ferris, Inc. (BFI), seeking damages for the two foregoing claims and unjust enrichment. The complaint alleged that: the Jefferson Davis Parish Sanitary Landfill Commission was created in 1984 to construct and operate the parish landfill; in early 1987, the Commission began the process of receiving bids for the operation of the landfill, which was under construction; although bid specifications were submitted to several operators, including American Waste and BFI, American Waste was the only bidder; in November 1987, the Commission entered into a long-term agreement with American Waste, which included conditions to be satisfied by the Commission before the agreement became effective; the Commission and American Waste entered into an interim agreement to allow American Waste to operate the site, pending implementation of the long-term agreement; and after entering into the interim agreement, and in reliance on the long-term agreement, it further developed, and otherwise operated, the landfill and, in conjunction with the Commission, prepared permit modifications which were submitted to, and in part later ratified by, the Department of Environmental Quality.
American Waste further alleged that in January 1989, BFI, with knowledge of the contract between American Waste and the Commission, submitted proposals to the Commission for the operation of the landfill; and that in 1989, while American Waste and the Commission were negotiating amendments to their agreements and American Waste was operating the landfill, BFI also “offered substantial sums of money and other incentives to the COMMISSION in order to induce the COMMISSION to completely repudiate its agreement and contractual relations with AMERICAN WASTE.”
The complaint further alleged that: the long-term and interim agreements had “been the subject of litigation between the Jefferson Davis Parish Police Jury, the COMMISSION, the Town of Welsh and AMERICAN WASTE”; in May 1989, a Louisiana court “held that the agreements were invalid,” because they “required the COMMISSION to turn over the day to day control over the landfill to AMERICAN WASTE without unanimous consent of the governmental bodies which [made] up the COMMISSION”; this ruling was contrary to the agreements, which state that the Commission was to maintain such day-today control; and in July 1989, after the state court removed American Waste, the Commission entered into an agreement with BFI to operate the landfill.
In count one of its complaint, American Waste alleged that BFI’s actions “constitute[d] an intentional, unjustified and improper interference with contractual relations”; and that, as a result of this interference, the Commission breached its agreements with American Waste, causing injury to American Waste. American Waste also alleged that BFI was unjustly enriched at the expense of American Waste as a result of the intentional interference.
In the second count, American Waste alleged that during the pendency of the state litigation, the parties to it had reached an informal settlement agreement in January 1989; and that BFI, “with full knowledge that American Waste and the COMMISSION were negotiating amendments to their existing agreements, intentionally offered substantial sums of money, [1386]*1386in excess of [$5 million], and other incentives to the COMMISSION in order to induce the COMMISSION to withdraw from these settlement negotiations and to completely repudiate its agreement and contractual relations with AMERICAN WASTE,” causing the settlement to fail.
In the third count, American Waste alleged that BFI’s conduct violated the UTPCPL.
Pursuant to Rule 12(b)(6), BFI moved to dismiss the complaint for failure to state a claim upon which relief can be granted. The magistrate judge issued a report and recommendation that (1) Louisiana law did not recognize BFI’s conduct as actionable under its law of intentional interference with contract, because the Louisiana case which had recently recognized the doctrine, 9 to 5 Fashions, Inc. v. Spurney, 538 So.2d 228 (La.1989), and the cases following it, did not extend the doctrine to the facts as alleged by American Waste; (2) BFI’s actions did not provide a cause of action under the UTPCPL, because the alleged wrongful conduct did not constitute a statutory unfair trade practice; and (3) American Waste could not bring a claim for unjust enrichment, because it had not alleged all of the elements for that cause of action and the claim, if any, would lie against a party other than BFI.1
In response to the recommendation, American Waste filed objections and a supporting memorandum in district court, to which BFI responded. “[A]fter an independent review of the record and a de novo determination of the issues,” the district court held that the findings in the recommendation were correct and dismissed the action.
II.
Of course, in reviewing a Rule 12(b)(6) dismissal, the court must accept as true all well-pleaded averments and view them in the light most favorable to the plaintiff. Moreover, “we may uphold ... [a Rule 12(b)(6) dismissal] only if it appears that no relief could be granted under any set of facts that could be proved consistent with the allegations.” Baton Rouge Bldg. & Constr. Trades Council v. Jacobs Constructors, Inc., 804 F.2d 879, 881 (5th Cir.1986) (citation omitted). And, as recently held by the Supreme Court, we “review de novo a district court’s determination of state law.” Salve Regina College v. Russell, 499 U.S. -, 111 S.Ct. 1217, 1221, 113 L.Ed.2d 190 (1991).2
“When presented with an unsettled point of state law, our role under Erie R.R. Co. v. Tompkins, 304 U.S. 64, 58 S.Ct. 817, 82 L.Ed. 1188 (1938), is to determine how the [Louisiana] Supreme Court would resolve the issue if presented to it.” Coatings Mfrs., Inc. v. DPI, Inc., 926 F.2d 474, 479 (5th Cir.1991). In addition, “[w]hen making an AWe-guess in the absence of explicit guidance from the state courts, we must attempt to predict state law, not to create or modify it.” United Parcel Serv., Inc. v. Weben Indus., Inc., 794 F.2d 1005, 1008 (5th Cir.1986) (citing Jackson v. Johns-Manville Sales Corp., 781 F.2d 394, 396-98 (5th Cir.1986) (en banc)). “[W]e are not free to fashion new theories of recovery under Louisiana law.” Pittman v. Dow Jones & Co., 834 F.2d 1171, 1171 (5th Cir.1987).
A.
In Spurney, the Louisiana Supreme Court recognized a very narrow cause of action for tortious interference with contracts. The Louisiana World Exhibition, Inc. (LWE), contracted with 9 to 5 Fashions to supply uniforms for the fair employees. After the fair, 9 to 5 was unable to collect under the contract, be[1387]*1387cause LWE was in bankruptcy. 9 to 5 sued Spurney, CEO of LWE, alleging that he had damaged 9 to 5 by intentional and negligent interference that hindered its performance of the contract.
Initially, the court noted that 9 to 5 wanted it “to recognize an action that it has refused to allow since 1902, viz., an action for tortious interference with a contractual relationship.” 538 So.2d at 231. In addressing the issue, the court noted:
It is the basic policy of our law that every act whatever of man that causes damages to another obliges him by whose fault it happened to repair it. La. Civ.Code art. 2315. The framers conceived of fault as a breach of a preexisting obligation for which the law orders reparation, when it causes damage to another, and they left it to the courts to determine in each case the existence of an anterior obligation which would make an act constitute fault. 2 M. Planiol, Treatise on the Civil Law, Part 1, §§ 863-865 (1959); Pitre v. Opelousas General Hosp., 530 So.2d 1151 (La.1988).
538 So.2d at 231 (emphasis added). Pursuant “to these basic principles,” the court held
that, in light of modern empirical considerations and the objectives of delictual law, an officer of a corporation owes an obligation to a third person having a contractual relationship with the corporation to refrain from acts intentionally causing the company to breach the contract or to make performance more burdensome, difficult or impossible or of less value to the one entitled to performance, unless the officer has a reasonable justification for his conduct.
Id. (emphasis added).
The court noted that its holding was “derived from the contemporary doctrine of interference with contractual relations existing in other jurisdictions,” which it found “consistent with civilian delictual principles and implemental of present day moral, social and economic values.” Id. at 231-32. Noting the distinction between negligence and an intentional tort, the court held that a corporate officer should be free “to fully perform his fiduciary duty as authorized by his corporation,” without “undue fear of personal liability”; but that when his “action is detrimental to the corporation or outside the scope of his authority, the officer should be responsible for his intentional acts of interference with the contract rights of another.” Id. at 232.
In so holding, it discussed Kline v. Eubanks, 109 La. 241, 33 So. 211 (1902), which had been considered a bar to an action for intentional interference with contract unless the means used were unlawful. The court noted that the authorities relied on in Kline “have been outflanked and rendered obsolete by modern economic developments” and that Louisiana was the only state that did “not recognize [an] action for tortious interference with contractual relations.” 538 So.2d at 232. The court overruled its previous decisions “barring absolutely any action based on a tortious interference with a contract” insofar as they conflicted with the Spurney opinion. Id. at 234. But, its holding was limited.
It is not our intention, however, to adopt whole and undigested the fully expanded common law doctrine of interference with contract, consisting of “a rather broad and undefined tort in which no specific conduct is proscribed and in which liability turns on the purpose for which the defendant acts, with the distinct notion that the purposes must be considered improper in some undefined way.” [quoting Prosser & Keeton, The Law of Torts] Some aspects of this tort have been subjected to serious criticisms, leaving open a good many questions about the basis of liability and defense, the types of contract or relationship to be protected, and the kinds of interference that would be actionable____ In the present case we recognize ... only a corporate officer’s duty to refrain from intentional and unjustified interference with the contractual relation between his employer and a third person.
Id. (citations omitted).3
As reflected above, the Louisiana Supreme Court in Spurney did not adopt [1388]*1388wholesale the common law tort of tortious interference with contract; however, it did not expressly preclude a cause of action on that basis based on other facts. BFI contends that the Louisiana doctrine of tor-tious contractual interference only applies to a corporate officer, while American Waste asserts that Spumey opened the door for recovery under the facts pleaded in its complaint.
In the two and one-half years since it was rendered, Spumey’s reach has not been expanded. Tallo v. Stroh Brewery Co., 544 So.2d 452 (La.App. 4th Cir.), writ denied, 547 So.2d 355 (La.1989), concerned, inter alia, the attempted purchase of the wholesale contract of another corporation to operate a Stroh’s distributorship in Louisiana. The wholesale contract with Stroh provided that it would not unreasonably withhold approval of a requested control change. Stroh refused to approve the change of control; and as a result, the contract of sale was terminated. Plaintiffs sued Stroh and its employee or agent for interference with its contractual relations. The court ruled that “[i]mplicit in those allegations is the presumption that defendants owed a duty to plaintiffs to act reasonably in considering their request for a change of control. Therefore, our inquiry is whether such a duty exists.” Id. at 454. The court held that Stroh did not owe a duty to the plaintiffs, because Stroh had a contractual relationship only with its distributor, not with the plaintiffs. The court found no relationship — such as a third party beneficiary — giving rise to a duty and therefore dismissed for failure to state a claim, noting that Spumey “refused to adopt the entire expanded common law doctrine of interference with contract rights.” Id. at 453.4 See also Farrell v. Boyer, 541 So.2d 398, 400 (La.App. 4th Cir.1989) (Spumey does not create a cause of action against one who interferes with another’s marriage); Butler v. Reeder, 573 So.2d 1159, 1160 (La.App. 5th Cir.1991) (same).
In Peacock v. Brightway Signs, Inc., 545 So.2d 649 (La.App. 5th Cir.), writ denied, 551 So.2d 636 (La.1989), the court remanded a case which apparently did not involve a corporate officer’s interference with contract, but the court did not state the factual background. The case had been dismissed on the Kline preclusion; and the remand was for the trial court to reconsider, in light of Spumey, its holding that the tort of intentional interference with a contract did not exist in Louisiana. The concurring judge stated that he was of the opinion that Spumey “does not have the broad applicability that the majority seems to feel it does.” 545 So.2d at 649.
The Louisiana Supreme Court has also applied its Spumey holding. In Great Southwest Fire Ins. Co. v. CNA Ins. Cos., 557 So.2d 966 (La.1990), an excess liability insurer brought suit against the primary insurer, seeking recovery of sums expended due to the alleged bad faith failure of the primary insurer to defend properly and settle a lawsuit against their common insured. The opinion was penned by the author of Spumey. The court held that the primary insurer did “not owe a duty of care or even of good faith performance to the excess insurer”; that “if the excess insurer is to recover from the primary insurer for acts which make the excess insurer’s contract and liability more burdensome, it must do so by asserting the insured’s rights after becoming subrogated [1389]*1389to them or after acquiring them through assignment.” Id. at 971.5
Even though the court noted that “bad faith” was an act requiring more intentional conduct than that necessary for finding negligence, it held that to find such a duty would result in allowing the excess insurer an action “very similar to an action for negligent interference with contract.” In refusing to find the requisite duty, the court stated:
This court recently recognized for the first time in some 87 years the possibility of a narrowly drawn action for intentional interference with contractual rights and indicated that it would proceed with caution in expanding that [tor-tious interference] cause of action. [Spurney.\ Aside from undermining the court’s resolve in that case to advance with care, recognition of a duty by the primary insurer to conduct its settlement negotiations and defense efforts in good faith so as not to cause undue risk of harm to the economic interests of the excess insurer would be unwise for independent reasons.
Id. at 969-70 (emphasis by court). In discussing those reasons, the court noted that interference with contract was principally an intentional tort, requiring more than negligence; that subrogation was the recognized, as well as judicially manageable, basis for recovery by insurers; and that there is “a general inhibition in negligence law against compensation for purely economic loss not the result of either bodily harm to the claimant or physical injury to property in which claimant has a proprietary interest.” Id. at 970. Accordingly, included among its several reasons for not allowing the action (finding the duty), was the concern that the duty “would evolve to include a duty to avoid negligent interference.” Id. at 971. See also Herbert v. Placid Refining Co., 564 So.2d 371, 374 (La.App. 1st Cir.), writ denied, 569 So.2d 981 (La.1990) (Louisiana does not recognize a cause of action for negligent interference with contract rights).
And, in Spencer-Wallington, Inc. v. Service Merchandise, Inc., 562 So.2d 1060 (La. App. 1st Cir.), writ denied, 567 So.2d 109 (La.1990), the court stated that “Spumey expressly recognized a duty on the part of a corporate officer not to interfere with the corporation’s contractual relations.” Id. at 1063 (emphasis by court). The court further found that Spumey “expressly refused to adopt wholesale the broad common law doctrine of tortious interference with contract.” Id. at 1064. When Service Merchandise purchased H.J. Wilson, Inc., a contract between Wilson and the plaintiff corporation was cancelled. Plaintiffs alleged that due to the defendant’s actions, the corporation had been forced out of business and the individuals had suffered injury.
The court held that “a fair reading of the Supreme Court’s seminal decision [Spur-ney ] ... does not disclose a cause of action for the facts pled at bar.” Id. at 1063. The court found that there was no legal duty that embraced the risk of harm complained of; that Spumey mandated that the alleged third-party breach be more than merely derivative of the duty of good faith imposed on parties to a contract under Louisiana law. See also Frisard v. Eastover Bank for Savings, 572 So.2d 343 (La.App. 5th Cir.1990) (tortious interference is an intentional act by a corporate officer); Matrix Essential, Inc. v. Emporium Drug Mart, Inc., 756 F.Supp. 280, 284 (W.D.La.1991) (Spumey “recognized only an action wherein a corporate officer causes his own corporation to breach a contract between his own corporation and the plaintiff.”) (emphasis by court); Nowling v. Aero Services Intern., Inc., 752 F.Supp. 1304, 1310-11 (E.D.La.1990).
Chaffin v. Chambers, 577 So.2d 1125 (La.App. 1st Cir.), writ granted, 584 So.2d 665 (La.1991) concerns facts somewhat akin to those here; a suit by one lawyer against another in tort for wrongful interference with the former’s contract with his client. It was alleged that after the plaintiff lawyer had been retained and filed suit, and with knowledge that the plaintiff had [1390]*1390been retained, the defendant (“ ‘alleged to be an attorney-at-law practicing in the State of Louisiana’ ”) convinced the client that he could better represent him, resulting in the client’s breaching the contract with plaintiff. In response to the claim that he failed to state a cause of action, plaintiff relied upon Spurney. After reviewing Spurney, Great Southwest Fire Insurance Company, and other actions discussed above, the court noted: (1) that the alleged solicitation and intentional interference were prohibited by a Louisiana Rule of Professional Conduct; (2) that a commentator had suggested that violation of the rule could result in both an action for tortious interference and an ethical complaint; (3) that the Louisiana Supreme Court had exclusive jurisdiction over regulating the practice of law and that a legislative act purporting to do so required the court’s approval or acquiescence; (4) that an action for tortious interference is based on an act of the legislature (article 2315 discussed supra) and that “the legislature can not enact laws regulating the practice of law in any respect without the approval of the Louisiana Supreme Court”; and (5) that the earlier referenced concurring opinion in Tallo stated that it was for the Louisiana Supreme Court, not her intermediate courts, to expand Spurney, if at all. Id. at 1128-31 (emphasis by court).
Accordingly, and without discussing whether the requisite duty existed, it held that the complaint failed to state a cause of action for intentional interference with contract. Id. at 1131. In so doing, it noted that the plaintiff might have a cause of action for a share of any fee recovered in the action originally filed by that plaintiff lawyer and remanded for the plaintiff to amend his complaint to attempt to state a cause of action. Id. at 1131. (As noted, American Waste likewise sued, inter alia, for unjust enrichment; but it does not assert that dismissed claim here.)
As stated, the post-Spurney decisions have not expanded the Louisiana law of tortious interference with contracts. The Louisiana Supreme Court has recognized the doctrine only in the limited context of a corporate officer; and to date, both it and the lower state courts have refused to extend this doctrine to other situations. See, e.g., Jarrell v. Carter, 577 So.2d 120, 122 n. 2 (La.App. 1st Cir.), writ denied, 582 So.2d 1311 (La.1991).
For our review of this Rule 12(b)(6) dismissal, we have accepted the allegations in the complaint as true and have viewed them in the light most favorable to American Waste. Having done so, we hold that Louisiana would not recognize a cause of action for tortious interference with contracts based on those facts. The common thread in Spurney and its progeny is the requisite duty, or obligation, for such a cause of action; a duty must exist for recovery of damages under Louisiana law, pursuant to article 2315, discussed supra. And whether a duty exists is a question of law. As quoted earlier from Spurney,
[t]he framers [of the Civil Code] conceived of fault as a breach of a preexisting obligation for which the law orders reparation, when it causes damage to another, and they left it to the courts to determine in each case the existence of an anterior obligation which would make an act constitute fault.
538 So.2d at 231 (citations omitted and emphasis added). See Harris v. Pizza Hut of Louisiana, Inc., 455 So.2d 1364, 1371 (La.1984) (“[d]uty is a question of law”).
The requisite duty in Spurney arose out of a corporate officer’s narrowly defined duty to those with whom his corporation contracts. The Louisiana courts have refused to find this duty, or obligation, in other circumstances, as discussed supra. See, e.g., Great Southwest (no duty of primary insurer to excess insurer); Tallo (no duty because no contractual relationship existed). As we construe these narrowly drawn holdings, BFI had no relationship with American Waste on which to base the requisite duty. Accordingly, in making our Nrie-guess on this aspect of Louisiana law, and because the requisite duty is lacking, we hold that Louisiana would not allow a claim against BFI for tortious interference [1391]*1391with contract.6
In fulfilling our Erie role, we can only predict Louisiana state law; “[i]t is up to the Supreme Court of Louisiana and not this court to change the substantive law of that state.” Cargill, Inc. v. Offshore Logistics, Inc., 615 F.2d 212, 215 (5th Cir.1980). It took the Louisiana Supreme Court almost 90 years to recognize a quite narrow cause of action for tortious contractual interference; it is not for this diversity court to expand that cause of action in the face of Louisiana’s expressed unwillingness to do so.
B.
The UTPCPL claim is based on the same facts as the claim for tortious interference with contract. The act states in pertinent part:
Unfair methods of competition and unfair or deceptive acts or practices in the conduct of any trade or commerce are hereby declared unlawful.
La.Rev.Stat.Ann. § 51:1405. The statute provides a private cause of action for any person who suffers damage as a result of such unfair methods or practices. La.Rev. Stat.Ann. § 51:1409. American Waste contends that BFI owed it a duty to refrain from tortious contractual interference, because the UTPCPL declares unfair methods of competition and unfair or deceptive trade practices to be unlawful. However, no Louisiana court has held that UTPCPL creates a duty to refrain from such interference.
A trade practice is unfair “when it offends established public policy and when the practice is unethical, oppressive, unscrupulous, or substantially injurious to consumers and consumers include business competitors.” Roustabouts, Inc. v. Hamer, 447 So.2d 543, 548 (La.App. 1st Cir.1984) (emphasis added); see also Gautreau v. Southern Milk Sales, Inc., 509 So.2d 495, 497 (La.App. 3d Cir.1987). Furthermore,
[ajdmittedly, the definition of what may constitute an unfair act or practice is broad and subjective. Thus, it is best that the determination of what may amount to an unfair act or practice remain the province of the courts applied on a case by case basis. Only in that way may the many harms sought to be proscribed by the act be prevented.
Roustabouts, 447 So.2d at 548 (emphasis added); see also Moore v. Goodyear Tire and Rubber Co., 364 So.2d 630, 633-34 (La.App. 2d Cir.1978).
American Waste relies primarily on Monroe Medical Clinic, Inc. v. Hospital Corp. of America, 522 So.2d 1362 (La.App. 2d Cir.1988), decided before Spumey. There, the plaintiffs alleged that Hospital Corporation of America (HCA) was “providing specific economic benefits to groups of doctors who contracted] with them to use their facilities, and that [HCA] uses this economic leverage to influence the actions of the ‘favored’ physicians so as to unfairly block out or disadvantage the ‘unfavored’ physicians.” Id. at 1365. The court held that the plaintiff’s allegations were sufficient to state a cause of action under the UTPCPL “through the unethical and oppressive use of economic advantage to the detriment of the plaintiffs.” Id. The court noted that although the complained of actions might simply be sound business practice in the exercise of permissible business judgment, the plaintiffs were entitled to a trial to determine whether the actions they alleged fell within the scope of the statute. Id.
The claim in Monroe, however, was not for tortious interference with contract; and no Louisiana court has considered the relationship between the UTPCPL and such interference.7 Therefore, in our analysis of [1392]*1392the UTPCPL claim, we are Erie -bound to return to Spumey. Although no Louisiana court has decided whether tortious interference would constitute an unfair trade practice, it seems clear that Louisiana has decided, at least for now, that tortious interference is limited to the Spurney facts. See Moore, 364 So.2d at 634 (the collection actions of Goodyear “constituted actions which have long been recognized in Louisiana as unlawful ... oppressive and unscrupulous”) (emphasis added). Even though the UTPCPL is broadly written, it cannot apply to activity which is not actionable under Louisiana law. Exercising our Erie role, and absent a preexisting duty, we hold that Louisiana would not recognize tortious interference with contract as viola-tive of the UTPCPL.
C.
Alternatively, American Waste requests that we certify these issues to the Louisiana Supreme Court. We decline to do so.
III.
Accordingly, the judgment of the district court is
AFFIRMED.