OPINION OF THE COURT
RENDELL, Circuit Judge.
I.
Plaintiff Feesers, Inc. appeals the District Court’s grant of summary judgment in favor of defendants Michael Foods and Sodexho in this antitrust action. In its complaint, Feesers alleged that Michael Foods violated section 2(a) of the Robinson-Patman Act, 15 U.S.C. § 13(a), by selling its potato and egg products at lower, and thus discriminatory, prices to So-dexho. It further alleged that Sodexho violated section 2(f) of the Act, 15 U.S.C. § 13(f), by knowingly inducing the discriminatory pricing.
The District Court found that Feesers failed to prove the fourth element of its prima facie case under section 2(a), namely that the alleged discrimination had a prohibited effect on competition, because Feesers failed to show that it was in “actual competition” with Sodexho. See Feesers, Inc. v. Michael Foods, Inc. & Sodexho, Inc., No. 04-Civ-576, 2006 WL 1274088, slip op. at 23 (M.D.Pa. May 4, 2006). We will reverse because the District Court used the wrong standard in making this determination and we conclude that Fees-ers has proffered sufficient evidence of competition between itself and Sodexho for sales of food products to food service facilities to allow a reasonable factfinder to conclude that these companies are in “actual competition.” Moreover, the District Court erroneously put the burden on Fees-ers to prove not only “actual competition,” but also that Michael Foods’ discriminatory pricing caused Feesers to lose sales to Sodexho, rather than placing the burden on Michael Foods to rebut the inference of injury to competition that arises from proof of a substantial price discrimination between competing purchasers over time.
II.
Most of the underlying facts are undisputed. Where there is a dispute, we view the facts in the light most favorable to Feesers. Andreoli v. Gates, 482 F.3d 641, 644 (3d Cir.2007).
The customers of Sodexho and Feesers are food service facilities that sell meals, snacks, and beverages, such as school, hospital, and nursing home cafeterias. Both Sodexho and Feesers sell food products to food service facilities in the States of Pennsylvania, New Jersey, Maryland, Delaware, and Virginia. Feesers is a full-line distributor of food and food-related products (“products”) that distributes these products to institutional customers. So-dexho is a food service management company that provides facility management and operation services to its clients and, in most cases, also sells products to the facilities. Sodexho does not warehouse and deliver products directly to its clients, but rather contracts with its clients to procure products for them and then subcontracts with distributors who distribute the products to the facilities. Both Feesers and Sodexho contract with food service facilities to provide them with products from [209] Michael Foods. Michael Foods is a supplier of egg and potato products.
A food service facility will contract with either Sodexho or Feesers, but not both,1 to buy food and food-related products. A food service facility may either contract with Sodexho for Sodexho to operate the facility and procure products,2 or contract with Feesers for Feesers to procure products and the facility will self-operate or hire a third-party operator. To procure products for a facility, Feesers purchases products directly from Michael Foods and then resells the products to food service facilities.
Sodexho’s process to procure products from Michael Foods for resale to food service facilities is a bit more complicated. Sodexho itself does not purchase products from Michael Foods, but employs a distributor, such as Sysco Corporation.3 Although product suppliers like Michael Foods generate price lists that set forth the prices at which they sell food to distributors, Sodexho has negotiated lower deviated pricing with Michael Foods. The transaction proceeds as follows: Michael Foods sells products to Sodexho’s designated distributor at list prices and the distributor, which is usually Sysco, then resells the products to Sodexho and provides Michael Foods with proof of delivery of products to Sodexho; Sysco invoices Michael Foods for the difference between the list price and the Sodexho-negotiated deviated price; Sodexho then purchases these products from Sysco pursuant to a “prime distributor agreement,” which specifies the price that Sodexho will pay Sysco for each product. Under the agreement, Sysco sells the Michael Foods products to Sodexho for the Sodexho-negotiat-ed price plus an agreed-upon markup. App. 9706. Sysco’s resale price of Michael Foods’ products to Sodexho reflects the lower prices in the deviated pricing agreement between Sodexho and Michael Foods. See Feesers, Inc., slip op. at 5.
After Sodexho purchases the Michael Foods products from Sysco at the agreed-upon prices, it resells the products to a food service facility customer and charges the cost of the products to the customer as an “operating expense.” The food service facility generally does not interact directly with Sysco or any other Sodexho-designat-ed distributor. Instead, the facility pays Sodexho for the invoiced cost of the food— plus, in most cases, a “procurement expense” of 0.9% of the invoiced amounts— [210] as part of the facility’s reimbursement of Sodexho for “operating expenses.” Thus, because Michael Foods charges Sysco less for products resold to Sodexho than it charges Feesers for the same products, Sodexho’s customers pay less than Fees-ers’ customers for these products.
Feesers’ customers are, in general, self-operated facilities, while none of Sodexho’s customers are self-operated.4 However, food service facilities may switch from being self-operated to being operated by a management company like Sodexho. When a self-operated facility that previously bought products from Feesers is converted to a Sodexho-operated facility, Sodexho operates the facility and generally also procures the new client’s food products, thereby displacing Feesers. For example, the Jewish Home of Greater Harrisburg was self-operated and bought its products from Feesers. It then became a Sodexho-managed facility and stopped buying products from Feesers. St. Mary’s Catholic School was also a Feesers customer and self-operated facility, which then switched to being operated by Sodex-ho and no longer buys products from Fees-ers. Sodexho will approach self-operated (“self-op”) facilities to convert them to So-dexho-operated facilities. App. 1425 (Deposition of Christophe Rochette of Sodex-ho) (“[Y]ou asked me repeatedly, are we interested in converting self-op? That is what we are. So, I mean, I think that we should [be] clear that for the record, that yes, we convert self-op. That is what we do.”). Sodexho has solicited at least five facilities served by Feesers to become So-dexho customers. Sodexho customers end up paying less for products from Michael Foods than they would pay if they were self-operated and purchased the same products from Feesers.
On the other hand, facilities also switch from being operated by Sodexho to being self-operated. In these cases, Sodexho will no longer procure food for the facility and the facility will seek out another company, such as Feesers, from which to buy its food products. The Meadows Nursing Home was a Sodexho customer and switched to being a self-operated facility and a Feesers customer, in part because Michael Foods agreed to give Feesers the same product pricing given to Sodexho. In 1998, Sodexho lost nine accounts to self-operation. App. 1426. In 1999, eight So-dexho customers switched to being self-operated. App. 1427.
Feesers sued Michael Foods and Sodex-ho in the United States District Court for the Middle District of Pennsylvania, alleging that Michael Foods violated section 2(a) of the Robinson-Patman Act, 15 U.S.C. § 13(a), by selling products at discriminatory prices to Sodexho and that Sodexho violated section 2(f) of the Act, 15 U.S.C. § 13(f), by knowingly inducing the discriminatory pricing. Defendants moved to dismiss the complaint on the grounds that Feesers had not adequately pled that it was in actual competition with Sodexho. The District Court denied the motion and allowed the parties to proceed to discovery. After discovery, the parties all moved for summary judgment.
The District Court found that Feesers had established three out of the four ele[211] ments of its section 2(a) claim against Michael Foods: that sales were made to two different purchasers in interstate commerce; that the product sold was of the same grade and quality; and that defendant discriminated in price as between the two purchasers. Feesers, Inc. v. Michael Foods, Inc. & Sodexho, Inc., No. 04-Civ-576, 2006 WL 1274088, slip op. at 10-18 (M.D.Pa. May 4, 2006). First, the Court noted that there was no dispute that the goods purchased from Michael Foods were of the same grade and quality. Feesers, slip op. at 10. The Court also found that “because the facts that establish that Michael Foods sold products at different prices are not in dispute ... price discrimination exists within the context of the Act.” Id. at 11. Finally, as to the requirement that there be two purchasers in interstate commerce, the Court concluded that the facts show that Michael Foods sold to two purchasers, Feesers and Sysco. The Court concluded that this is a case of “third-line” discrimination, i.e., when a seller’s price discrimination harms competition between customers of the favored and disfavored purchasers. Id. at 12 n. 8. The Court did not reach the issue of whether Sodexho is a direct “economic” purchaser from Michael Foods, which would, presumably, make this a second-line discrimination case (i.e., discrimination that harms competition between two purchasers). Defendants do not challenge these findings on appeal.5
However, the District Court found that Feesers failed to proffer sufficient evidence to prove the fourth element of its prima facie case: that the discrimination had a prohibited effect on competition. Id. at 24. The District Court found that Fees-ers did not meet its burden to show that it was in “actual competition” with Sodexho as of the time of the price differential. Id. at 23. The District Court noted that Fees-ers had failed to prove that it competes with Sodexho “at the same functional level.” Id. at 21. The Court also found that [212] Feesers failed to proffer evidence that it lost customers to Sodexho because of food prices, rather than for other reasons relating to the management services Sodexho provides. Without this evidence, the Court found that Feesers could not prove that it competes with Sodexho. Accordingly, because Feesers failed to establish a prima facie case under section 2(a) of the Act, the Court granted summary judgment in favor of defendants and denied Feesers’ motion for summary judgment.6 Id. at 24. Feesers now appeals.
III.
We exercise plenary review over the District Court’s grant of summary judgment in favor of defendants, and we apply the same standard that the District Court should have applied. Andreoli 482 F.3d at 647. Summary judgment is appropriate when “the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law.” Fed.R.Civ.P. 56(c). We “must view the facts in the light most favorable to the nonmoving party and draw all inferences in that party’s favor.” Farrell v. Planters Lifesavers Co., 206 F.3d 271, 278 (3d Cir.2000).
Section 2(a) of the Robinson-Patman Act, 15 U.S.C. § 13(a), provides in relevant part that:
It shall be unlawful for any person engaged in commerce, in the course of such commerce, either directly or indirectly, to discriminate in price between different purchasers of commodities of like grade and quality, where either or any of the purchases involved in such discrimination are in commerce, where such commodities are sold for use, consumption, or resale within the United States or any Territory thereof or the District of Columbia or any insular possession or other place under the jurisdiction of the United States, and where the effect of such discrimination may be substantially to lessen competition or tend to create a monopoly in any line of commerce, or to injure, destroy, or prevent competition with any person who either grants or knowingly receives the benefit of such discrimination, or with customers of either of them.
As the District Court correctly stated, in order to prove a violation of section 2(a) of the Robinson-Patman Act, a plaintiff must show (1) that sales were made to two different purchasers in interstate commerce; (2) that the product sold was of the same grade and quality; (3) that defendant discriminated in price as between the two purchasers; and (4) that the discrimination had a prohibited effect on competition. See Texaco Inc. v. Hasbrouck, 496 U.S. 543, 556, 110 S.Ct. 2535, 110 L.Ed.2d 492 (1990). This appeal concerns the fourth element of Feeser’s claim under section 2(a): competitive injury. Specifically, we must decide whether the District Court applied the correct legal standard to determine whether Sodexho and Feesers are in actual competition and whether it erred in holding that Feesers did not proffer sufficient evidence to allow a reasonable factfinder to conclude that it is in actual competition with Sodexho.
To establish the fourth element of its prima facie case against Michael Foods, Feesers was required to show that there is “a reasonable possibility that [the] price difference may harm competition,” i.e., “competitive injury.” Falls City Indus., [213] Inc. v. Vanco Beverage, Inc., 460 U.S. 428, 484-35, 103 S.Ct. 1282, 75 L.Ed.2d 174 (1983) (emphasis added). As we stated in J.F. Feeser, Inc. v. Serv-A-Portion, Inc., “[i]n keeping with the Act’s prophylactic purpose, designed to prevent the occurrence of price discrimination rather than to provide a remedy for its effects, section 2(a) does not require that the discrimination must in fact have harmed competition. Instead, a reasonable possibility of harm, often referred to as competitive injury, must be shown.” 909 F.2d 1524, 1531 (3d Cir.1990) (internal citations and brackets omitted).
“Competitive injury” is established prima facie by proof of “a substantial price discrimination between competing purchasers over time.”7 Falls City Indus., 460 U.S. at 435, 103 S.Ct. 1282 (citing FTC v. Morton Salt Co., 334 U.S. 37, 46, 50-51, 68 S.Ct. 822, 92 L.Ed. 1196 (1948); id. at 60, 68 S.Ct. 822 (Jackson, J., dissenting in part)) (emphasis added). In order to establish a prima facie violation of section 2(a), Feesers does not need to prove that Michael Foods’ price discrimination actually harmed competition, i.e., that the discriminatory pricing caused Feesers to lose customers to Sodexho. Rather, Fees-ers need only prove that (a) it competed with Sodexho to sell food and (b) there was price discrimination over time by Michael Foods.8 This evidence gives rise to a re-buttable inference of “competitive injury” under § 2(a). See Morton Salt, 334 U.S. at 46, 68 S.Ct. 822. The inference, if it is found to exist, would then have to be rebutted by defendants’ proof that the price differential was not the reason that Fees-ers lost sales or profits. See Falls City Indus., 460 U.S. at 435, 103 S.Ct. 1282.
The District Court required Fees-ers to prove too much. It placed the burden on Feesers to show not only that it “actually competes” with Sodexho, but also that “food costs and distribution are the determining factors ” in a consumer’s choice between hiring Sodexho or Feesers, i.e., that Sodexho’s lower food prices are why customers switch from buying products from Feesers to buying products and management services from Sodexho. Feesers, slip op. at 45 (emphasis added). In the absence of such evidence, the District Court concluded that Feesers failed to establish “actual competition.”
[214] The District Court was concerned that Sodexho and Feesers are not at the same “functional level” and are therefore not in “actual competition” in the same market. This concern is understandable given that the facts of this case are somewhat unusual. First, the involvement of Sysco creates an additional link in the chain of distribution between Michael Foods and Sodexho, which does not exist in Feesers’ distribution chain. Second, most alleged violations of section 2(a) of the Robinson-Patman Act involve competition between two traditional resellers, such as two food distributors or two retail gas stations, that buy commodities from a seller and then resell the commodities to customers. Here, however, Feesers is a traditional commodity reseller, while Sodexho resells commodities to clients only in conjunction with the sale of services, such as food preparation and facility management services.
However, as we observed in Stel-wagon Manufacturing Co. v. Tarmac Roofing Systems, Inc., the relevant question is whether two companies are “in economic reality acting on the same distribution level,” rather than whether they are both labeled as “wholesalers” or “retailers.” 63 F.3d 1267, 1272 (3d Cir.1995). To determine whether Sodexho and Fees-ers compete to resell food products to the same group of customers, we must conduct a “careful analysis of each party’s customers. Only if they are each directly after the same dollar are they competing.” M.C. Mfg. Co. v. Tex. Foundries, Inc., 517 F.2d 1059, 1068 n. 20 (5th Cir.1975); see also George Haug Co. v. Rolls Royce Motor Cars, Inc., 148 F.3d 136, 141-42 (2d Cir.1998) (noting that determining “the presence or absence of functional competition between purchasers of a commodity is simply a factual process which focuses on whether these purchasers were directly competing for resales among the same group of customers”).9 The District Court did not view the evidence, as it should have, in the light most favorable to Fees-ers, and instead found that Feesers and Sodexho do not compete, without giving due consideration to the evidence of actual competition proffered by Feesers.
The evidence here could lead to a different conclusion than that reached by the District Court. Although Sodexho resells Michael Foods products to food service facilities that it operates, while Feesers resells Michael Foods products to self-operated food service facilities, the evidence, viewed in the light most favorable to Fees-ers, shows that Feesers’ customers and Sodexho’s customers are not two separate and discrete groups of food service facilities. Feesers proffered evidence that customers may be self-operated for some time, then switch to Sodexho, or, alternatively, may be operated by Sodexho and then switch to self-operation. Two food service facilities, St. Mary’s Catholic [215] School and the Jewish Home of Greater Harrisburg, were Feesers customers and self-operated facilities, but then switched to being operated by Sodexho and no longer buy food from Feesers. App. 7072, 7139. Feesers also proffered evidence that the Meadows Nursing Home was a Sodexho customer and switched to being a self-operated facility and a Feesers customer, in part because Michael Foods agreed to give Feesers the same pricing as it gives to Sodexho. App. 7073. There is also evidence that Sodexho actively solicits self-operated facilities to become Sodexho-operated, and also loses some customers each year that decide to self-operate instead of using Sodexho’s operation services.
Our dissenting colleague attributes customers’ decisions to switch from buying products from Feesers to buying products from Sodexho to the fact that “clients may choose to switch between the market for unprepared food stuffs and the market for prepared meals.” Dis. Op. at 221. He suggests that Sodexho does not sell unprepared food, but rather “prepared meals,” and that we are confusing “cost accounting with actual business transactions” by concluding otherwise. Id. at 217. However, the record in this case belies that assertion. To the contrary, a factfinder could conclude that Sodexho sells unprepared food to its customers. The record is replete with agreements between facilities and Sodexho wherein the facilities are not charged for “prepared meals,” but rather for the cost of unprepared food and supplies, the cost of labor, and a management fee. Sodexho in fact promotes its ability to get lower prices for the food products that its customers use in their facilities. Sodexho notes in its promotional materials that “food and supplies are a major portion of the cost of a food service program.” App. 5121. It goes on to boast that its “extensive network of purchasing resources can lower the prices of food and supplies ... while actually improving the quality of the products you use.” Id. In its promotional materials and proposals to potential clients, Sodexho could not be more clear that it sells food products to its clients and passes along the price discounts that it is able to secure from its product suppliers in the price that it charges its clients for the products.10 In fact, Sodexho’s superior product prices are touted as resulting from Sodexho’s “leveraging [its] procurement power as the industry’s largest purchaser of food.” App. 3806 (Proposal for Abington Friends School). This is a major thrust of its sales pitch.11 Sodexho’s charging its customers [216] for the cost of food products cannot be characterized as mere “cost accounting” any more so than any other business’ charging a customer for invoiced goods is just “cost accounting.” At minimum, Feesers has proffered sufficient evidence to create a genuine factual dispute as to whether Sodexho and Feesers both resell food products to the “same group of customers.”
If substantial price discrimination between competing purchasers over time is established, then the inference of competitive injury arises. See Morton Salt, 334 U.S. at 46, 68 S.Ct. 822. However, this inference is not irrebuttable. As the Supreme Court stated in Falls City Industries, Inc. v. Vanco Beverage, Inc., 460 U.S. 428, 103 S.Ct. 1282, 75 L.Ed.2d 174 (1983):
In Morton Salt this Court held that, for the purposes of § 2(a), injury to competition is established prima facie by proof of a substantial price discrimination between competing purchasers over time. 334 U.S. at 46, 50-51, 68 S.Ct. at 828, 830-831; see id. at 60, 68 S.Ct. at 835 (Jackson, J., dissenting). In the absence of direct evidence of displaced sales, this inference may be overcome by evidence breaking the causal connection between a price differential and lost sales or profits. F. Rowe, Price Discrimination Under the Robinson-Patman Act 182 (1962); see Chrysler Credit Corp. v. J. Truett Payne Co., 670 F.2d 575, 581 (C.A.5 1982).
Id. at 435, 103 S.Ct. 1282 (emphasis added). The inference could be rebutted with evidence proffered by defendants that the price discrimination does not cause food service facilities to decide to buy food from Sodexho rather than Feesers. However, the District Court improperly put the burden on Feesers to prove that a difference in the price of products causes facilities to switch from buying from Feesers to buying from Sodexho. Feesers, slip op. at 22 (“It is undisputed that Michael Foods offered Feesers pricing that matched its pricing to Sodexho because the Meadows was a Sodexho client, however, Feesers failed to establish that the availability of that pricing was the determining factor for the Meadows in making the switch.”). This was error. The burden is on defendants to show the absence of the causal link.
Our dissenting colleague takes issue with the Robinson-Patman Act on policy grounds and urges that we are applying it too broadly, so as to render price discrimination between non-competitors a violation of the Act. We reject this characterization of the record before us, and suggest that Congress has written the law, and courts have construed it, to apply to situations where discriminatory pricing poses a threat to competition. Viewing the evidence in the light most favorable to Fees-ers, a factfinder could conclude that this is such a situation. Therefore, it is for the factfinder, here the District Court, to decide whether defendants’ actions fit within the contours of what Congress has proscribed. We will remand for it to do so.
IV.
Accordingly, for the reasons set forth, we will reverse the grant of summary judgment in favor of defendants and remand for further proceedings consistent with this opinion.