OPINION OF THE COURT
These appeals concern the liability of cross-appellant United Mine Workers of America (the “Union”) for failure to collect royalties owed by a number of coal operators to the Anthracite Health and Welfare Fund (the “Fund”), and the availability for set-off against such liability of certain loans made by the Union to the Fund. Appellants, retired mine workers or their dependents, are the beneficiaries of the Fund.
This appeal presents three principal questions, one dealing with the liability of the Union and two with the set-off, which we will dispose of as follows. First, we will affirm the district court’s exercise of discretion in denying pre-judgment interest on the amounts for which it held the Union liable. This is the appellants’ only challenge to the district court’s calculation of the Union’s liability. Our holding on this point fixes the maximum liability of the Union at $7,589,296.63.
Third, we will affirm the district court’s holding that it had jurisdiction over the Union’s claim for set-off based on loans made by the Union to the Fund in the 1970’s (the “1970’s loans”), although on different grounds. Notwithstanding that this set-off is a permissive counterclaim for which there is no independent basis of federal jurisdiction, we hold that the question of the existence of ancillary jurisdiction does not turn on the characterization of the counterclaim as “permissive” or “compulsory,” but rather on the presence or absence of a “common nucleus of operative fact,” the jurisdictional test propounded in United Mine Workers v. Gibbs,
Because the amounts available for set-off from the 1950’s, 1960’s, and 1970’s loans is $12,634,000.00, while the maximum liability of the Union, once appellants’ claim for pre-judgment interest has been rejected, is only $7,589,296.63, we will affirm the judgment of the district court in favor of the Union. The other contentions of the parties would either decrease the Union’s liability or increase the amount available for set-off; because the Union does not seek an affirmative recovery, we do not reach those other contentions.
I. FACTUAL AND PROCEDURAL HISTORY
The events that led to this litigation began with the signing of the Anthracite Wage Agreement of 1946 between the Union and the Anthracite Coal Mine Operators. That agreement created the Fund as an independent trust fund for the collection of contributions from the operators based on their production, and for the distribution of pensions to former Union members and their dependents. The 1946 Wage Agreement provided that the Fund would be managed by three trustees, one appointed by the operators and two appointed by the Union. In 1947, Congress enacted the Labor-Management Relations Act (the “Taft Hartley Act”), which requires that unions and management be equally represented on the board of trustees of pension trust funds. See 29 U.S.C. § 186(c)(5) (1982). The Union and the mine operators thereupon agreed to designate one of the Union trustees as “neutral,” in order to bring the Fund within the requirements of the Taft-Hartley Act.
In addition to de facto control of the Fund’s board of trustees, the Union was actively involved in efforts to insure the collection of payments from the operators. These efforts “paralleled, and in some instances replaced, trustee enforcement efforts.” Ambromovage v. Thomas, Civ. No. 8696, slip op. at 9 (M.D.Pa. July 9, 1982) [hereinafter “1982 Mem.Op.”].
The history of the Fund has been characterized by severe financial distress. Beginning in the 1950’s, anthracite coal production suffered a precipitous ánd prolonged decline. Many operators fell behind on the payment of royalties to the Fund. This created a situation in which the Union’s loyalties were divided: although the interests of pensioned miners required diligent collection of Fund royalties, the Union was inclined to be less than vigorous in pressing financially distressed operators to pay delinquent royalties, lest their efforts drive the operators out of business and destroy the jobs of active members. The Union’s attempts to balance the interests of its two constituencies resulted in a growing number of delinquencies, and a corresponding decline in benefit payments. This litigation grew out of a movement to protest benefit reductions which began in 1961.
The complaint in this case
The case was tried to the district court without a jury on July 15-16, 1974. In its opinion, filed on April 13, 1976, Nedd v. United Mineworkers of America, Civ. No. 8796 (M.D.Pa. April 13, 1976) [hereinafter “1976 Mem.Op.”], the court held that it had no subject matter jurisdiction over the appellants’ claims.
In Nedd II, we reversed the district court’s jurisdictional holding, and remanded the case on the merits. We found that there- was jurisdiction over the federal claims against the Union based on all three theories alleged by the appellants, see supra, and found that pendent jurisdiction supported the state claim as well. Turning to the merits, we found that, as a result of the Union’s predominant position in the Fund’s operations, the Union had “placed itself in the position of the Trustees for all practical purposes with respect to the enforcement of the royalty obligations of the mine operators.”
On remand, the district court filed several opinions resolving the questions left open by Nedd II. First, the court rejected appellants’ claim for prejudgment interest.
In a final opinion,
The court then applied these principles to the Union’s challenges to its liability for the delinquencies of nine particular operators.
The district court then held that the Union had met its burden of proving that the Union’s forgivenesses of the 1950’s and 1960’s loans did not constitute gifts, and that the amount of those loans was therefore available for set-off. The court also held that it had jurisdiction to set off the 1970’s loans, although these loans were not connected to the “liability-creating conduct” of the Union. As a result, the court found over $13 million available for set-off against the liability of approximately $7.6
On appeal, appellants raise three challenges to the set-off. First, they argue that there is no federal jurisdiction over the Union’s claims based on the 1970’s loans. Second, appellants argue that the Union has failed to meet its burden of demonstrating that the forgiveness of the 1950’s and 1960’s loans was not intended to be a gift. Appellants also challenge, on the same basis, the district court’s holding that the Union could set off certain amounts loaned to the Fund by Districts 1, 7, and 9 in the 1950’s.
The Union, on cross-appeal, challenges the district court’s holdings that the Union is liable for the delinquencies of the non-signatory operators, and that it had failed to establish non-liability with respect to the delinquencies of two particular signatory operators, Diamond Coal Company and No. 9 Coal Company. We need not reach these questions.
We turn first to the questions of the Union’s liability for prejudgment interest, and then consider the availability of the 1950’s, 1960’s, and 1970’s loans for set-off.
II. LIABILITY OF THE UNION FOR PREJUDGMENT INTEREST
In denying prejudgment interest, the district court concluded that, under either federal or Pennsylvania law, an award of interest in this case was a matter of discretion.
We perceive only one legal right, under either Pennsylvania or federal law.
Under Pennsylvania law, interest on damages for breach of fiduciary duty has been allowed “not as interest eo nomine but by way of damages.” In re Kenin's Trust Estate,
Th[e] weight of authority compels the conclusion that the Act of April 6, 1859 does not bar an award of pre-verdict interest in order to prevent unjust enrichment or where the payment of interest is required to avoid injustice. These authorities are also in agreement that the decision, whether to award interest and the amount of such interest, is vested in the discretion of the chancellor.
In connection with the federal claims, damages questions are governed by federal law, but federal law does not appear to differ from Pennsylvania in this regard. In the absence of an explicit congressional directive,
We next turn to an examination of the court’s exercise of that discretion. Appellants argue that the discretion available to award or deny prejudgment interest is limited. Relying on the general rule in admiralty cases, see, e.g., In re Bankers Trust Co.,
The district court denied prejudgment interest primarily because the Union had loaned over thirteen million dollars
Appellants advance two points in attacking the district court’s exercise of discretion. First, they argue that the Union acted willfully in concealing delinquencies and in violating the requirements of section 302(c)(5) of the Taft-Hartley Act by maintaining a Union officer as the “neutral” trustee. The Union, appellants argue, cannot avail itself of equity because it comes before the court with unclean hands. But this argument, as the Union points out, runs counter to the district court’s findings that the Union acted in good faith, and did not conceal the delinquencies to avoid suit. We cannot say those findings are clearly erroneous.
Second, appellants argue that the court abused its discretion by failing to calculate the actual benefit to the Fund from the interest-free loans and measure it against the actual losses to the Fund due to the delinquencies. We think the better course would have been to perform such a calculation, but we cannot say, given the actual difference between the amounts loaned and the Union's liability, that this was an abuse of discretion.
In sum, we reject appellants’ contention that they were entitled, as a matter of law, to prejudgment interest. Our scope of review is, therefore, limited to determining whether the district court abused its discretion. For the reasons noted above, we conclude that it did not. Accordingly, we affirm the district court on this point.
III. THE A VAIL ABILITY OF SET-OFF TO THE UNION
A. The 1950’s and 1960’s Loans
In Nedd II, we remanded to the district court the question whether the Union could set off the amounts of the Union’s loans to the Fund over the last thirty years against its liability to the Fund. We noted that if the Union’s forgiveness of the 1950’s and 1960’s loans constituted gifts, the loans could not be set off, explaining that under settled principles of trust law, a settlor-trustee cannot set off the amount of his gifts to the trust against his liability for a subsequent breach of trust. Since little evidence had been offered concerning the Union’s intent in cancelling the indebtedness, we found “[t]he district court’s conclusion that no gift was intended highly specula-five.”
On remand the district court took additional evidence on the question whether the Union intended a gift either when it made the loans or when it forgave them.
Appellants press two alternative arguments against the district court’s holding on this point. Appellants’ first argument. is that the only intent relevant to the issue of whether a gift was made was whether “the Union intended voluntarily to transfer property to the Fund without consideration therefor.” Appellants’ second argument is that the district court’s determination that the Union had met its burden of proving that the forgiveness of the 1960’s and 1970’s loans were not intended as gifts is clearly erroneous. We reject both arguments, and affirm the district court’s allowance of set-off.
The Union indisputably transferred the property by cancelling the debts, indisputably received no consideration for this transfer, and indisputably intended to make the transfer without consideration. Appellants argue that these facts establish “dona-tive intent,” as a matter of law, and that any further evidence of the Union’s motive or purpose in effecting this gratuitous transfer of property is irrelevant. We disagree.
Appellants argue that, because the trans-feror’s actual motive is not discussed in most “gift” cases, it is not relevant. But in most reported opinions dealing with the question whether a gift was made (and, we suspect, in most litigated “gift” cases), the transferor’s motivation for making the transfer is not at issue. The issue in such cases is whether the property was retained, in whole or in part, by the transferor. There are situations, however, in which the characterization of a transfer as a “gift” or otherwise depends upon an inquiry into the transferor’s purpose, in order to establish the presence or absence of donative intent. This is such a situation. Accordingly, we must look to the Union’s purpose in forgiving the loans.
A first point of inquiry in making this determination is the nature of the relationship between the Fund and the Union. A transfer of property will be characterized
The district court found that no gift was intended because the Union forgave the loans believing them to be uncollectible.
Appellants misconstrue what is required of the Union. The question before the district court was not whether in fact sufficient assets existed in the Fund to satisfy the debts, but whether the Union intended a gift in forgiving the loans. We will assume that the Union’s officers were aware of the facts noted by appellants, none of which are contested by the Union. The Union introduced the testimony of its general counsel, Harrison Combs, which characterizes the Union’s reason for cancelling the 1950’s loans as follows:
[T]he income of the [Fund] had not increased to the point that [the Fund] could pay [the loans] if [it] continued the level of benefits of paying the pensions. That there just wasn’t enough money coming in to do that and that it had gone along for some time since the — ’54 I suppo.se it was.
It is clear that when Union officers asserted that the loans were “uncollectible,” they did not mean that the Fund lacked sufficient revenues to satisfy the debt. We do not think that this fact undermines the Union’s position. In the context of the Union’s relationship to the Fund, which imposed upon the Union the fiduciary duty of a trustee, it is understandable and entirely proper that the Union’s view of what constituted uncollectibility was tied to the responsibilities it had assumed. An attempt by the Union to collect the loans would have defeated its contemporaneous attempts to preserve and if possible increase the level of pension benefits in the face of decreasing revenues.
The district court recognized that, in making the loans to the Fund, the Union fully expected to be repaid, but not at the expense of the pensioners:
The mutual assumption of the Union and Trustees, that operator contributions would continue at a level permitting both payment of pensions and repayment of the sum advanced, did not prove accurate. Rather than cause termination of the Fund, the Union forgave the loans.
Appellants challenge, on two grounds, the district court’s allowance of a set off of $5.9 million for loans advanced since 1970. First, appellants claim that the district court lacked subject matter jurisdiction over the set-off defense because there is no federal jurisdiction over permissive counterclaims
It is settled that compulsory counterclaims which are otherwise purely state-law claims are nonetheless ancillary to an .underlying federal claim, and may be brought in federal court without an independent jurisdictional basis. Moore v. New York Cotton Exchange,
We conclude that there is federal jurisdiction over the Union’s set-off claim based on the 1970’s loans. Our conclusion, however, is not based on the adoption of the defensive set-off exception; instead, it is based on the application of the general legal prin
The cases exploring the limits of both ancillary and pendent jurisdiction reflect an effort to deal with the tension between the limits placed on federal jurisdiction by Article III of the Constitution and by federal jurisdictional statutes, and the judicial reality that multiple claims are most efficiently disposed of in a single proceeding, at least where a “common nucleus of operative fact” underlies those claims.
On the first level, a court must determine whether it has constitutional power to determine a state-law claim. This “power” test depends on whether there is a “common nucleus of operative fact” between the state claim at issue and the accompanying federal claims. See United Mine Workers v. Gibbs,
In this case, the critical issue is whether the “first tier” hurdle has been met. As stated above, the constitutional test is whether a pendent or ancillary claim' has a “common nucleus of operative fact” with the underlying federal claim. Compulsory counterclaims have been held by the Supreme Court to fall within the scope of ancillary jurisdiction. Moore v. New York Cotton Exchange,
Turning to the second tier of analysis, we must determine whether the exercise of jurisdiction would violate a federal policy decision limiting federal jurisdiction. This is the use of ancillary and pendent jurisdiction that concerned the Supreme Court in Aldinger v. Howard, 427 U.S. 1,
Finally, we must examine the scope of the district court’s discretion in exercising jurisdiction over this claim. This “tier” requires that the court account for several factors, including fairness to the litigants, judicial economy, and the interests of federalism. In some areas, such as the use of tenuous securities law claims to “bootleg” a business fraud case into federal court, hard and fast rules have been developed to govern the trial court’s discretion. E.g. Tully v. Mott Supermarkets, Inc.,
Applying this “three-tiered” analysis to the Union’s claim for set-off based on the 1970’s loans, we conclude that the district court had jurisdiction. The “common nucleus of operative fact” test is met because the 1970’s loans grew out of the relationship between the Union and the Fund, which is the subject matter of appellants’ claims. Indeed, although the question has
Turning to the second level, we also find no substantive federal policy that requires that federal jurisdiction not be exercised over the Union’s claim for set-off. Both Aldinger and Owen appear to have been motivated by a concern that pendent or ancillary jurisdiction was being used to subvert statutory limits on federal jurisdiction, in Aldinger civil rights jurisdiction (§ 1343(3)), and in Owen diversity jurisdiction (§ 1382). These concerns are not applicable here. Moreover, the defendant, and not the plaintiff, is raising the ancillary claim in this case. The plaintiff is not attempting to “manufacture” federal jurisdiction in any sense. Additionally, the relevant statutes, jurisdictional and substantive, do not appear to in any. way exclude jurisdiction over the Union’s set-off claim. There is no important statutory policy at issue here to counterbalance the interest of the litigants and the judicial system in resolving the entire controversy in a single proceeding.
Finally, there are no prudential reasons evident from the record which would require that the district court decline to exercise jurisdiction. Because the claims must be liquidated in order for the exception to apply, the federal court is not required to apply state law in assessing damages except in the most mechanical fashion. In addition, since there is no affirmative recovery, the federal court does not get involved in state debt collection. Federalism concerns, therefore, are not strongly implicated. Since the defensive set-off by definition is only determined if the plaintiff wins on the underlying claim, adjudicating the set-off claim places little additional strain on judicial resources. In the case of a “defensive set-off” such as this, it is highly unlikely that there would be prudential factors sufficiently weighty to lead a district court to exercise its discretion to decline jurisdiction. Thus, the district court had the power and did not abuse its discretion in exercising jurisdiction over the set off for the 1970’s loans.
We turn, finally, to appellant’s assertion that loans advanced in 1975 and 1976, totalling $4,000,000, have not matured and are thus unavailable for set-off.
Having determined that there is federal jurisdiction over the Union’s asserted set-off based on the 1970’s loans, and that those loans have matured, there is no impediment to the set-off of those loans. Since the 1970’s loans were never forgiven, the questions concerning the intent of the Union are not relevant. The transactions were structured as loans, and the Fund assumed the obligation to repay. This is sufficient to negate any but the strongest evidence that the Union’s intent was anything other than to make a loan, and there is no such evidence. We conclude, therefore, that the 1970’s loans are available for set-off in their entirety.
IV. CONCLUSION
The district court found the Union liable for $7,589,296.63 in delinquencies. We have held that the district court did not abuse its discretion in denying appellants’ claims for pre-judgment interest. The Union’s liability, therefore, in no event could exceed the amount found by the district court. The district court found over $13,000,000 in loans from the Union to the Fund to be available for set-off. We affirm the holding of the district court as to the 1950’s, 1960’s, and 1970’s loans. There is, therefore, at least $12,634,000.00 available for set-off.
The judgment of the district court in favor of the Union will be affirmed.
Notes
. The case has come before us previously in Nedd v. United Mineworkers of America,
We take this opportunity to express the highest praise for Chief Judge Nealon, who has labored most ably and indefatigably throughout the course of this arduous litigation.
. The Union challenges the district court’s conclusion that it was liable for the delinquencies of twenty-one operators that had not signed the collective bargaining agreement (the “non-signatories”). In reaching this conclusion, the court pointed to evidence that the Union and the trustees considered those operators to be bound by the collective bargaining agreements, and that the non-signatory operators complied in part with the terms of the collective bargaining agreements, thus implicitly accepting the terms of those agreements. The district court acknowledged that the caselaw establishes that independent trustees would not have had any legal recourse available to force payments of royalties from these operators, Walsh v. Schlecht,
In reviewing this conclusion, the primary question is whether, as a matter of law, the Union could be held liable in its role as trustee for the “delinquencies” of operators who had not signed the collective bargaining agreement. The court is divided on that question, but our resolution of the primary issues discussed infra, which renders the set-off to which the Union is entitled far greater than the amount of its liability, makes it unnecessary for us to resolve it. If the union sought affirmative recovery for its set-off, we might, at all events, be obliged to determine this issue so as to fix the amount of the Union’s liability, but it is clear beyond peradventure that the Union seeks no affirmative recovery. The Union has also challenged the district court’s holding that its actions “caused” the losses to the Fund attributable to the delinquencies of two individual operators, Diamond Coal Company and No. 9 Coal Company. Our resolution of the case makes it unnecessary for us to reach those issues. Other than the challenges mentioned in the text
. We do not reach the issue of whether the loans made by Districts 1, 7, and 9 of the Union were also available for set-off. See infra note 21 and accompanying text.
. For example, under an enforcement program established in 1951, local union officials investigated delinquencies in operator payments in their districts, and sought to enforce collections. Between 1953 and 1962, the Union conducted thirty-one strikes against delinquent operators, designed to effect collection of delinquencies. Most of these activities were ineffective. In 1962 and 1963, however, following extended strikes, various operators entered into letter agreements with Union officials, which brought substantial payments of overdue amounts into the Fund. During this period, the trustees pursued parallel enforcement actions in court. Between 1954 and 1962, the trustees brought approximately thirty suits against delinquent operators in state court. These efforts
. Between 1951 and 1953, the Union loaned $3,795,000 to the Fund. During the same period, Union Districts 1, 7, and 9 loaned $613,324 to the Fund. These loans were cancelled in 1959. In 1960 and 1961, the Union loaned the Fund $2,885,000, which was forgiven in 1970. From 1974 to 1977, another $5,954,000 was loaned to the Fund by the Union. These loans remain outstanding.
. The activities of the pensioned miners groups are described in Thomas v. Honeybrook Miners, Civ. No. 8499 (M.D.Pa. April 13, 1973).
. The first complaint in this case alleged diversity jurisdiction. That suit was dismissed for lack of complete diversity. Nedd v. United Mine Workers of America,
. Section 185(a) states:
Suits for violation of contracts between an employer and a labor organization representing employees in an industry affecting commerce as defined in this chapter, or between any such labor organizations, may be brought in any district court of the United States having jurisdiction of the parties, without respect to the amount in controversy or without regard to the citizenship of the parties.
. Section 186(c) reads in relevant part:
(c) The provisions of this section [proscribing payments by an employer to an employee representative] shall not be applicable...
(5) with respect to money or other thing of value paid to a trust fund established by such representative, for the sole and exclusive benefit of the employees of such employer, and their families, and dependents... Provided, That ... (B) the detailed basis on which such payments are to be made is specified in a written agreement with the employer, and employees and employers are equally represented in the administration of such fund, together with such neutral persons as the representatives of the employees and the representatives of employees may agree upon....
. Relying on our decision in Nedd I, the court rejected the plaintiffs first theory, breach of the collective bargaining agreements, because the collective bargaining agreements imposed no contractual obligation upon the trustees and therefore jurisdiction over them could not be maintained under section 301. 1976 Mem.Op. at 37-43. The second theory, based on the “duty of fair representation,” was rejected on the basis of Allied Chemical and Alkali Workers of America v. Pittsburgh Plate Glass Co.,
.
.
. Nedd v. United Mineworkers of America,
. Nedd v. United Mineworkers of America,
. The appellants’ evidence concerning the amount of delinquencies consisted primarily of the Fund’s “ledger cards.” The ledger cards included the monthly production reports filed . by the operators with the Pennsylvania Department of Mines. The Union argued that the reports could, for several reasons, be inflated, and argued that the court should look to other evidence, including the operator’s reports to the Fund, to determine the operators’ production. The court found the appellants’ evidence of case production to be more reliable.
. See supra, note 2.
. Ambromovage v. Thomas, Civ. No. 8796 (M.D.Pa. July 9, 1982) [hereinafter “1982 Mem. Op.”]. New named plaintiffs had been substituted for Nedd, et al. See supra, note 1.
. It is unclear why the Union limited its challenge to nine operators, though these nine operators accounted for approximately two-thirds of the total scope of liability'.
. See supra, note 2.
. The district court originally set the liability at about $8.1 million, but subsequently reduced that figure due to its correction of a mathematical error.
. The district court apparently applied the same analysis to these “district loans” as it did to the 1950’s loans. Although we need not reach the issue, we see no apparent error in the district court’s analysis.
. As noted above, the prejudgment interest issue was covered by the district court in a separate published opinion, Nedd v. United Mine Workers of America,
. In advancing their theory of “interest damages,” appellants analogize the causes of action in contract that the Union could have pursued against the delinquent operators to interest-bearing bonds. They point out that if a trustee lost such bonds he would be clearly liable for the interest accruing on the bonds, and assert that the Union qua trustee similarly should be held liable for interest on the causes of action “lost” by the running of the statute of limitations, since interest would have been awarded as of right on those causes of action had the Union pursued them to judgment. See Palm-green v. Palmer’s Garage,
. Appellants concede that the remedies overlap, and that an award of pre-judgment interest (as opposed to “interest damages”) is within the equity court’s discretion.
. The question of interest on a judgment arising out of the pendent state law claims would be decided in accordance with state law; in connection with the federal claims, federal law is applicable. Because we see no difference between the federal and state rules regarding the court’s discretion to grant pre-judgment interest, we deal with the two together.
. The Pennsylvania Supreme Court subsequently reviewed the chancellor’s denial of prejudgment interest and found it to be an abuse of discretion. Sack v. Feinman,
. In Rodgers v. United States,
. Accord Blau v. Lehman,
. In admiralty, exceptional circumstances justifying a denial of prejudgment interest “exist only when the district court concludes that the party requesting interest has (1) unreasonably delayed in prosecuting its claim; (2) made a bad faith estimate of its damages that, precluded settlement, or (3) not sustained any actual damages.” Bankers Trust,
. In Eazor Express, we approved a discretionary award of prejudgment interest on unliqui-dated damages for a contract violation under section 301. Although we stated the “general rule” that prejudgment interest is available on liquidated damages as of right in a contract suit, we had no occasion to consider whether prejudgment interest under federal common law is discretionary or mandatory, and the statement relied upon by appellants is dictum. Two months after Eazor Express, we endorsed the federal rule allowing discretion in Thomas v. Duralite: “Interest is not to be recovered merely as compensation for money withheld, but, rather, in response to considerations of fairness. It should not be imposed when its exaction would be inequitable.”
. See supra, note 5.
. The court noted initially that, in terms of compensation, interest consisted of a component of real growth or income production and a component for inflation. Relying on Norte & Co. v. Huffines,
. The court noted that there was no “unjust enrichment” of the Union, since the uncollected royalties were not diverted into the Union’s coffers. It is unclear how this was factored into the court’s ultimate decision, except that it did not cut against the Union.
. Those findings appear in the 1976 Mem.Op. The decision in that case was reversed on other grounds.
. In its ultimate determination, the district court found the Union liable for $296,000 more than the amounts of the 1950’s and 1960’s
. Although Nedd II, in its discussion of the gift issue, concentrated on the intent of the Union at the time of forgiveness, the district court properly looked at both the time the loans were made and the time they were forgiven.
. Districts 1, 7 and 9 loaned an additional $613,324, which was also forgiven. We do not reach the issue whether or not these loans were intended as gifts. See supra, note 21.
. In Nedd II, we held that the Union breached its duty to the Fund’s beneficiaries under all four legal theories advanced by the beneficiaries. Three of those theories were federal and one was a pendent state-law breach of trust theory. Accordingly, we did not decide whether state or federal law trust standards would govern in this case, although we advanced a suggestion that federal common law under § 302 of the LMRA would likely preempt any inconsistent state law.
. The plaintiff in Feeley was a veteran. Following an accident involving a mail truck, he was treated at government expense under a veterans’ benefit statute. He sued the government under the Federal Tort Claims Act. We held that the plaintiff was not entitled to damages to account for the value of his medical treatment, because the veterans benefits were not a “gift” under Pennsylvania law.
In Feeley, we found the Pennsylvania Supreme Court’s decision in Gaydos v. Domabyl,
In Feeley, we also canvassed Pennsylvania cases considering whether lost wages were to be assessed against a tortfeasor if the victim continued to receive his customary wages from his employer while off the job. See, e.g., Pa-landro v. Bollinger,
. Under Pennsylvania law an unexplained transfer of property from a parent to a child raises an inference that a gift was made, relieving the proponent of his normal burden to prove donative intent and shifting the burden to the opponent to negate donative intent. See Northern Trust Co. v. Huber,
. See supra, note 39, concerning the Pennsylvania case law on “gifts” from employers. In the context of taxable income, the Supreme Court has also looked to the nature of a relationship in determining whether a transfer is a gift. See Commissioner v. Duberstein,
. On the facts of this case, it is possible to derive conflicting inferences from the relationship between the Union and the Fund. In Nedd II, we suggested that if the Union’s purpose in forgiving the debts was to make restitution for failures to collect delinquent royalties, there would have been no gift, notwithstanding that the cancellations were effected voluntarily and
. Appellants assert that our review of this issue is plenary because it is a “mixed question of law and fact.” To the extent that we review the district court’s findings of fact, we do so under the “clearly erroneous” standard of Fed. R. Civ.P. 52(a). We think the question whether the Union intended a gift is one of fact. Cf. Pullman-Standard v. Swint,
. Appellants in their reply brief suggest that the Union’s motivation for cancelling the loans was its political accountability to its pensioned members. Even if this were the Union’s purpose, we think that “true donative intent” as we have outlined it, would not necessarily be present.
. Under Fed.R.Civ.P. 13, there are two types of counterclaims: compulsory (Rule 13(a)) and permissive (Rule 13(b)). Compulsory counterclaims are defined as those “arising] out of the transaction or occurrence that is the subject matter of the opposing party’s claim.” Claims arising out of a different transaction, on the other hand, are permissive counterclaims. The 1970’s loans, coming after the union had extricated itself from unlawful control of the Fund, are asserted not to have arisen out of the same transaction or occurrence as the appellants’ claims against the Union. We need not decide whether or not this assertion is correct and will assume it for purposes of argument.
. Unlike the 1950’s and 1960’s loans, the 1970’s loans have not been forgiven.
. The origins of this exception are not totally clear. Professor Moore stated the exception in the first edition of Moore’s Federal Practice, without any supporting cases. The exception has since been recognized by a number of district courts, and acknowledged in dicta by two courts of appeals. E.g., Curtis v. J.E. Caldwell & Co.,
. See Owen Equipment and Erection Co. v. Kroger,
. This approach is expounded in Note, A Closer Look at Pendent and Ancillary Jurisdiction: Toward a Theory of Incidental Jurisdiction, 95 Harv.L.Rev. 1935 (1982) (hereinafter “Incidental Jurisdiction”). We decline to adopt the term “incidental jurisdiction” therein proposed, but rather use the traditional terms, though conceding that they overlap and are often interchangeable. We also decline to endorse all the analysis of Incidental Jurisdiction in its details. We do, however, find the general approach of the Note to be an intelligent way of systematizing the decisions in this area. We note that the analysis under the three separate tiers need not, of course, be performed by the courts in the order in which they are presented here. To the contrary, where the jurisdictional issue can be resolved without deciding constitutional questions, the courts should make every effort to do so.
. Our holding on this point is, of course, limited to situations in which the ancillary or pendent claim is attached to an underlying claim
. See Owen Equipment, supra note 48.
. See Aldinger v. Howard,
. The discretion to not exercise pendent jurisdiction was established in Gibbs,
. The words “transaction or occurrence” are not derived from Gibbs, or any other jurisdictional test, but rather appear to have originated with the Restatement of Judgments, which employs the term “transaction” in the test for res judicata. See Restatement (First) of Judgments § 61. The “transaction or occurrence” test is thought to derive from the same policies that motivated the Gibbs language requiring that pendent claims be “such that the plaintiff would ordinarily be expected to try them all in one judicial proceeding.”
. See, e.g., Note, The Res Judicata Implications of Pendent Jurisdiction, 66 Cornell L.Rev. 608, 614 n. 25 (1981).
. Cf. United States v. Heyward-Robinson Co.,
We note too that the defensive set-off exception does not fit squarely within the analytic framework set forth in the text. Judge Friendly has written that the set-off exception “carries the seeds of destruction of the so-called general rule (that there is no ancillary jurisdiction over a permissive counterclaim).” Hey-ward-Robinson,
. This analysis assumes, as we think it should, see Gibbs, that where Congress has not spoken to the contrary or where we cannot find a Congressional intent to the contrary, jurisdictional statutes give federal courts the power to exercise ancillary and pendent jurisdiction to the constitutional limit.
. Appellants have cited two cases for the proposition that, where a note is payable on demand or upon the happening of some future condition, actual demand is necessary to mature the note. See Blick v. Cockins,
. The reason that we find a smaller amount available for set-off is that we do not reach the question of the loans made by Districts 1, 7, and 9. See supra note 21.
