OPINION OF THE COURT
In this .case, a purchaser of printed cloth is suing the finisher of the cloth for damages resulting from defects in *1179 the goods, despite the fact that in an arbitration proceeding between the purchaser and the seller of the cloth, the seller was granted an award for the purchase price and the purchaser’s counterclaim based on defects in the cloth was “denied in its entirety.” We must decide whether the arbitrators’ award precludes relitigation in the federal district court of the issue regarding the quality of the cloth.
Plaintiff, Lynne Carol Fashions, Inc. (Lynne Carol), is a Philadelphia producer of ladies’ garments. In 1968, Lynne Carol purchased approximately 20,000 yards of material from Soptra Fabrics Corporation (Soptra), a New York converter of cloth. This cloth had been printed and finished by defendant, Cran-ston Print Works Co. (Cranston), a Rhode Island corporation. The goods were delivered by Soptra to Lynne Carol, but problems then arose when Lynne Carol attempted to sew the cloth to make dresses. Lynne Carol claimed that the difficulties were caused by defects in the material. Soptra asserted that the problems could be alleviated by altering Lynne Carol’s incorrect sewing techniques. Eventually, Lynne Carol refused to pay for the goods.
On May 20, 1969, pursuant to the written contracts between them, Soptra sought arbitration of its claim against Lynne Carol for the purchase price. Lynne Carol defended on the ground that the goods were defective, and counterclaimed for loss of profits and other damages. Soptra also raised two other grounds upon which the arbitrators could base an award to Soptra: that Lynne Carol had failed to comply with contractual terms regarding notice to Soptra of defects, and that Lynne Carol was precluded by the terms of the contracts from asserting any claim for goods it had cut or otherwise processed. On February 17, 1970, the arbitrators awarded Soptra $22,063.61, the balance due on the goods delivered plus interest and costs, and denied Lynne Carol’s claim “in its entirety.” The award was confirmed by the Supreme Court of the State of New York, judgment being entered by default on March 20,1970.
While the arbitration proceedings were underway, Lynne Carol filed a diversity action in the district court alleging that as a result of the defects caused by Cranston, Lynne Carol was damaged, and that Cranston breached its implied warranties of fitness and merchantability. Cranston first filed its answer, and then moved for summary judgment on a variety of grounds. The district court granted the motion for summary judgment solely on the basis that Lynne Carol was estopped from relitigating the issue as to the quality of the goods.
I
A federal district court in a diversity action must, under the principles of Erie R. Co. v. Tompkins,
Proponents of the theory that collateral estoppel is procedural assert that a state rule of collateral estoppel merely operates to outlaw certain causes of action in the state courts but does not eliminate the underlying rights, as contrasted with res judicata which operates to destroy causes of action by merger or bar. Therefore, so the argument goes, since collateral estoppel controls only access to the courts, it is procedural and not substantive, the federal courts are not bound by the state rule in this regard but should be able to adopt their own rules, and the adoption of such rules by the federal courts should be based on policy considerations, convenience, and practicality.
A similar contention that a statute of limitations is procedural only and that therefore the state rule is not binding on the federal courts was considered and
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rejected by the Supreme Court in Guaranty Trust Co. v. York,
Another instructive case in deciding whether state law of collateral estoppel must be adopted by a federal court is Bernhardt v. Polygraphic Co.,
In Byrd v. Blue Ridge Elec. Corp., Inc.,
In the present case, however, we are in a “gray” area of the law with regard to how closely collateral estoppel is tied to state-created rights. Lynne
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Carol’s cause of action is based on Pennsylvania law, that allows recovery for breaches of implied warranties even though there is no privity between the purchaser and the remote manufacturer. Kassab v. Central Soya,
The question whether the federal court shall apply the state law of collateral estoppel is a close one, because of the tension between the “outcome-determinative” test of Guaranty Trust and the relation to the state-created rights test of Byrd. Therefore, prudence indicates that the further analysis suggested by Byrd should also be explored. The first such inquiry is whether “a strong federal policy” exists.
Last term, in Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation,
“Even accepting respondents’ characterization of these figures [as to the extent of patent relitigation] as de minimis, it is clear that abrogation of Triplett will save some judicial time if even a few relatively lengthy patent suits may be fairly disposed of on pleas of estoppel. More fundamentally, while the cases do discuss reduction in dockets as an effect of elimination of the mutuality requirement, they do not purport to hold that predictions about the actual amount of judicial time that will be saved under such a holding control decision of that question. . . . Regardless of the magnitude of the figures, the economic consequences of continued adherence to Triplett are serious and any reduction of litigation in this context is by comparison an incidental matter in considering whether to abrogate the mutuality requirement.”402 U.S. at 348-49 ,91 S.Ct. at 1453 ,28 L.Ed. 2d 788 .
The policy against repetitious litigation was found to be so strong that the case was remanded to allow the defendant to *1182 amend its pleadings to assert this affirmative defense. 5
In Williams v. Ocean Transport, Inc.,
There is another “strong federal policy” — the right to a jury trial as guaranteed by the Seventh Amendment — that militates in favor of applying a federal rule of collateral estoppel rather than a state rule. This is in fact the very policy which the Supreme Court held to be of overriding importance in
Byrd.
If a state rule were to allow foreclosure from litigation of the issue of the quality of the cloth, then, because Lynne Carol was required to arbitrate with Soptra, it could be contended that such a rule would operate to deprive Lynne Carol of its right to have a jury decide the question in its judicial proceeding against Cranston.
See
Rachel v. Hill,
The fact that these two policies — to favor collateral estoppel as a means of terminating litigation, but to permit jury trials — are antithetical, or at least appear to be so, is not decisive in determining whether to apply federal law. Byrd would indicate that all that is required to resort to federal rather than state law is the existence of one federal policy of paramount importance. It would appear that if two contradictory policies exist, the federal court will have to reconcile them or else apply one and distinguish the other in reaching its ultimate conclusion.
If either consideration constitutes a “strong federal policy” in favor of the application of a federal rule of collateral estoppel, the next inquiry is whether the outcome of this case would be different if the federal rule were tó be applied rather than the state rule. For reasons elucidated below, the outcome of this case would be exactly the same, regardless of the applicable rule. Because our analysis of outcome leads to identical results applying either rule, we need not now decide whether the federal or state rule should be followed.
II
Assuming that the federal rule of collateral estoppel is applicable, the lack of mutuality would not bar Cranston from asserting that Lynne Carol was estopped from relitigating the question of the quality of the goods. See e. g., Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation, supra. However, before collateral estoppel may be invoked, we must determine whether the tripartite test adopted by the Supreme Court has been satisfied:
“. . . Was the issue decided in the prior adjudication identical with the one presented in the action in question? Was there a final judgment on the merits? Was the party against whom the plea is asserted a party or in privity with a party to the prior adjudication?”402 U.S. at 323-324 ,91 S.Ct. at 1440 ,28 L.Ed.2d 788 , quoting Bernhard v. Bank of America Nat. Trust & Savings Assn.,19 Cal.2d 807 , 813,122 P.2d 892 , 895 (1942).
The last two questions can be answered affirmatively in this case. Lynne Carol was a party to the prior adjudication, and the award of the arbitrators is
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equivalent to a final judgment on the merits. Garnett v. Kassover, 8 App. Div.2d 631,
Superficially, it appears that the quality of the goods in question was squarely before the arbitrators. However, close analysis reveals that the precise issue as to the quality of the goods presented to the arbitrators, as framed by Lynne Carol, was whether “the goods sold . . . were not fit for the normal and intended use of such fabric by the purchaser, with the purpose of the use known to the seller.” On the other hand, the complaint in the district court alleges that the goods “were manufactured, produced, printed and designed by the defendant” and “were defective when they left the defendant[’s] . . . control. . . . ”
It seems that Lynne Carol would have to introduce different evidence to prove, in the face of Cranston’s denial that it was the “manufacturer,” that Cranston “manufactured, produced, printed and designed” material that was defective at the time of manufacture, rather than to show that the goods sold by Soptra “were not fit for the normal and intended use of such fabric.” In short, .to prove the case against Cran-ston, plaintiff would have to establish that the defects were caused by Cran-ston and not Soptra. This issue was not litigated in the arbitration, and therefore, cannot be precluded from this action.
See
James L. Saphier Agency, Inc. v. Green,
Even if the issues as to the quality of the goods at the time of manufacture or at the time of shipment by the converter could be construed as being identical, preclusion by collateral estoppel still would not be warranted in this case because that question- — the quality of the goods — was not necessary to the decision of the arbitrators. The requirement that the issue to be barred must have been necessary to the decision in the first litigation is well entrenched in the law. 6 The sound basis for the principle is that parties should be es-topped only on issues they actually deem important, and not on incidental matters. Here, because of the contractual defenses raised by Soptra, it is possible that the arbitrators could have found that the goods were defective, but that recovery was not warranted because Lynne Carol had not complied with the contractual terms. However, the arbitrators’ decision merely announced the award, but is silent as to the specific grounds relied on. Thus, it is impossible to determine from the arbitration whether the goods were in fact found to be defective. Because the contractual defenses probably could not be raised by Cranston, and because the arbitrators could have found the goods defective, Lynne Carol should not be precluded from establishing that the goods were in fact defective.
There is a third ground for permitting plaintiff to proceed with its proofs. Lynne Carol was obligated by its contracts with Soptra to submit disputes to arbitration. However, no such contract limiting the right to seek relief in a court before a jury was ever signed with Cranston. Had Lynne Carol not been bound to arbitrate with Soptra, it would have been entitled to a jury trial in a suit in federal court against Soptra.
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The Court of Appeals for the Fifth Circuit, in Rachel v. Hill,
III
Assuming, however, that this matter is one that should be resolved as if the district court were a Pennsylvania trial court, the same result obtains although a different process of legal reasoning is employed.
It has long been the law that the Full Faith and Credit Clause
7
of the Constitution and the federal statute
8
implementing that clause “have made that which has been adjudicated in one state res judicata to the same extent in every other.” Magnolia Petroleum Co. v. Hunt,
According to New York law, an arbitration award is a final adjudication on the merits. Garnett v. Kassover, 8 App.Div.2d 631,
In a leading case, the New York Court of Appeals stated that in determining whether parties may be foreclosed by the doctrine of collateral estoppel, “the test to be applied is that of ‘identity of issues.’” Israel v. Wood Dolson Co.,
There is a second approach that also provides a valid ground under state law for not applying collateral estoppel in this case. In the New York courts, as well as in the federal courts, a litigated fact may provide a proper basis for invoking collateral estoppel only where that finding was essential to the judgment in the first action. Hinchey v. Sellers,
IV
For the reasons stated above, regardless whether federal or state law is applicable, it was error for the district court to grant summary judgment solely on the ground of collateral estoppel. 12 Accordingly, the judgment of the district court will be reversed, and the cause remanded for further proceedings consistent with this opinion.
Notes
. More recently, in Hanna v. Plumer,
. The case was remanded to the court of appeals to apply the Vermont choice of law rule as to whether New York or Vermont law applied to the arbitration provision of the contract.
.
E. g.,
Provident Tradesmens Bank & Trust Co. v. Lumbermens Mutual Cas. Co.,
. Seigfried v. Boyd,
. Tlie Supreme Court noted that “[m]any federal courts, exercising both federal question and diversity jurisdiction, are in accord unless in a diversity ease bound to apply a conflicting state rule requiring mutuality.”
.
See e. g.,
Halpern v. Schwartz,
. U.S.Const. Art. IV., § 1.
. 28 U.S.C. § 1738 (1964).
. Almost twenty years ago, this Court held that when enforcement of an arbitration award rendered in a foreign state is sought, the validity of that award must be determined in accordance with the law of the foreign state. Mazer v. Van-Dye-Way Corp.,
. But see, 74 Harv.L.Rev. 421. 423 (1960), which urges that a finding of fact be deemed essential to the judgment if the parties and trier of fact recognized it as important, and if its significance to future litigation was reasonably foreseeable.
. Appellee has argued that Lynne Carol, having initiated this litigation, had a duty to ask the arbitrators for special findings, and not having so asked, cannot rely on any ambiguity in the award to defeat collateral estoppel. However, Cranston has not cited any authority which would indicate either that Lynne Carol had the right to ask for such findings or that failure to do so changes the prevailing rules of collateral estoppel. Bruszewski v. United States,
. Defendant raised several other matters in its motion for summary judgment. Since the district court did not address itself to them, and because the record does not provide the basis for our doing so, we express no opinion regarding them.
