Lead Opinion
opinion of the Court:
¶1 In 2011, the Arizona Legislature enacted Senate Bill 1609, which made certain changes to the Elected Officials’ Retirement Plan. The Bill changed the formula for calculating future benefit increases for retired Plan members and increased the amount that employed Plan members must contribute toward their pensions. Retired members of the Plan challenged the provision changing the formula for calculating future benefit increases. They argued that the change violated the Pension Clause of the Arizona Constitution, article 29, section 1, which provides that “public system retirement benefits shall not be diminished or impaired.”
¶2 Employed members of the Plan also challenged the Bill. First, they argued that the unilateral changes to the benefit increases formula and to the amount they were required to contribute toward them pensions violated the Pension Clause for the reasons set forth in Fields. Second, relying on our long-standing decision in Yeazell v. Copins,
¶3 Upon transfer from the court of appeals, we affirm the granting of summary judgment to the employed Plan members. As we held in Fields, the Bill’s change to the benefit increases formula violates the Pension Clause because it “diminishes and impairs” the employed members’ pension benefits. The Bill’s changes to the benefit increases formula and the contribution rate also violate our holding in Yeazell because the Legislature cannot unilaterally change the terms of the members’ pension contracts once their rights to those terms have vested at the beginning of the membei’s’ employment. Contrary to the trial court’s ruling, however, we find that the employed members are entitled to attorneys’ fees and prejudgment interest and that the judgment must ran against the State as well as the Plan.
I. FACTS AND PROCEDURAL HISTORY
¶4 In 1985, the Legislature established the Plan to provide pension benefits for elected officials, including judges. A.R.S. §§ 38-801(15), -802, -804. The Plan has four funding sources: employer contributions, employee contributions, court filing fees, and investment proceeds. A.R.S. § 38-810. The employee contribution rate was set by statute initially at 6%, with the employer being responsible for contributing the remaining amount necessary to fund a defined benefit upon retirement. See A.R.S. § 38-810(A) (1985). In 1987, A.R.S. § 38-810(A) was amended to increase the employees’ contribution to 7%. See 1987 Ariz. Legis. Serv., ch.
¶5 During the 1990s, the Plan generated investment returns that far exceeded the ae-tuarially assumed rate of return. See PSPRS Plan’s Funding Status Report with Options for Improving Funding and Reducing Required Contributions, at 2 (2010). During the same period, however, the Plan’s financial health was being “seriously compromised” because the Plan was gradually concentrating its investments in securities of high technology and telecommunications companies. Id. In March 2000, the prices of technology and telecommunications securities began to “decline rapidly.” Id. This made the Plan vulnerable to major financial shocks in 2000, 2008, and 2009. By fiscal year 2011, the Plan’s funding ratio—the actuarial value of the Plan’s assets divided by its actuarial accrued liabilities—was 62.1%, a drop from 121% in 1998 and 101.9% in 1986. Accordingly, the State’s contribution level necessarily increased, while the employee contribution rate remained constant, as set by statute.
¶6 In 2011, attempting to address continued rising costs, the Legislature enacted the Bill, making several unilateral changes to the Plan to be applied retroactively from June 30, 2011. See 2011 Ariz. Legis. Serv., ch. 357. One change the Bill made was to the statutory formula for calculating permanent benefit increases under A.R.S. § 38-818. The Bill amended AR.S. § 38-818.01 to prohibit the transfer of any investment earnings that exceed the rate of return to the reserve fund and changed the formula used to calculate the permanent benefit increases, increasing the rate of return necessary to trigger a benefit increase. See A.R.S. § 38-818.01(B).
¶7 We resolved whether the Bill’s change to the statutory formula for calculating permanent benefit increases was constitutional with respect to retired members in Fields,
¶8 The Bill made another change that was not at issue in Fields, but is here. The Bill amended the employee contribution rate structure by increasing the rate to 10% for fiscal year 2011-2012 and to 11.5% for fiscal year 2012-2013. A.R.S. § 38-810(F)(l)-(3) (2011). It also set the rate for fiscal year 2013-2014 and each fiscal year thereafter to the lesser of 13% of the member’s gross salary or 33.3% of the sum of the member’s contribution rate from the preceding fiscal year and the normal cost plus the actuarially-determined amount required to amortize the employer’s unfunded accrued liability. A.R.S. § 38-810(F)(4) (2011).
¶9 In November 2011, Judges Philip Hall—who has since retired—and Jon W. Thompson, on behalf of themselves and as representatives of a class of employed Plan members and beneficiaries as of July 20, 2011, the Bill’s effective date (collectively, “Class Members”), sued the Plan and the Board of Trustees of the Public Safety Personnel Retirement System (collectively, “EORP”). The Class Members alleged that the Bill violated Yeazell, the Pension and Judicial Salary Clauses of the Arizona Constitution, and the Contract Clauses of the Arizona and United States Constitutions. The State intervened to defend the Bill. After the State intervened, the Class Members notified the trial court and the parties that they would seek relief, including attorneys’ fees, expenses, and taxable costs, not only from EORP but also from the State.
¶10 After intervening litigation, the parties each moved for summary judgment. The Class Members maintained—as relevant here—that the Bill violated Yeazell by unilaterally modifying their interests in their pensions, which had vested at the outset of their employment with the State, and violated the
¶11 The trial court granted the Class Members’ motion for summary judgment and denied EORP’s and the State’s cross-motions for summary judgment. The court held that the Pension Clause protected the benefit increases formula and the 7% prior contribution rate because they constituted “benefits” that were always part of the members’ contractual relationship with the State, The court rejected EORP’s argument that the vesting statute preempted the members’ contractual rights and their rights under the Pension Clause. The court concluded that the statute applies only to “ordinary” vesting, meaning that a member has no right to receive retirement benefits until the member fulfills specific conditions and retires. The court thus granted the Class Members the relief they sought.
¶12 The parties then asked for a stay pending our decision in Fields, which the trial court granted. After considering the effect of Fields, the court denied the Class Members’ request for attorneys’ fees under A.R.S. § 12-341.01 because it concluded that the action arose out of constitutional and statutory—not contractual—obligations. The court also denied the Class Members’ request for prejudgment interest because it found that EORP was not unjustly enriched and should not be charged interest on money it legally could not pay. The court further denied the Class Members’ request that relief run against the State because it found that the State had intervened only to defend the Bill’s constitutionality and the Class Members’ notice seeking relief against EORP and the State was insufficient to assert claims against the State.
¶13 EORP and the State timely appealed the summary judgment in the Class Members’ favor, and the Class Members timely cross-appealed the judgment denying attorneys’ fees, prejudgment interest, and relief against the State. We granted the parties’ joint petition to transfer the case under Arizona Rule of Civil Appellate Procedure 19(a). The funding of public pensions raises issues of statewide importance, and we have jurisdiction pursuant to article 6, section 5(3) of the Arizona Constitution.
II. DISCUSSION
ISSUES ON APPEAL
¶14 EORP and the State argue that the trial court erred by finding that the Bill violates the Pension Clause and Yeazell.
A. The Pension Clause
¶15 EORP and the State first argue that the trial court erred because the benefit increases formula and the prior contribution rate are not “benefits” and therefore not protected by the Pension Clause. Regarding the benefit increases formula, this Court concluded in Fields that permanent benefit increases and the benefit increases formula were “benefits” as used in the Pension Clause. See
B. A Binding Contractual Relationship
1. Yeazell v. Copins
¶16 EORP and the State also argue that the trial court erred in applying Yeazell because “Yeazell enshrined the vesting statute as part of the [member’s employment] contract, authorizing the Legislature as a matter of the express contract to make reasonable prospective changes like adjusting the contribution rate.” Consequently, they argue, Yeazell does not “apply constitutional protections for pension lights” and also does not affect whether the Pension Clause protects the benefit increases formula and the prior contribution rate. The Class Members counter that the Bill violates Yeazell because it seeks to unilaterally and retroactively modify their pension terms as provided in their employment contracts when they began services.
¶17 Yeazell established that the State’s promise to pay retirement benefits is part of its contract with the employee. See
¶18 The issue in Yeazell was whether the Legislature could unilaterally change statutorily-created retirement benefits that were part of the terms of an employee’s employment contract when the employee began service. See id. at 111-12,
¶19 Yeazell acknowledged that under the Gift Clause, “[t]he state may not give away public property or funds; it must receive a quid pro quo which, simply stated, means that it can enter into contracts for goods, materials, property and services.”
¶20 Based on Yeazell and its Gift Clause underpinnings, the law in Arizona has been clear since 1965 that public employees are contractually entitled to the retirement benefits specified in their initial employment contract. See, e.g., Proksa,
¶21 For Yeazell, we concluded that the Legislature had unilaterally amended the 1937 statute, which had become a part of his employment contract—a contract that included the 2% contribution rate and a pension calculation based on his last year’s earnings. Tucson therefore could not retroactively vary the pension terms without Yeazell’s consent. Yeazell,
¶22 Although acknowledging that Yeazell established a contractual relationship between the State and public employees regarding the employees’ pensions, EORP and the State nonetheless assert that Yeazell provides only that “the employees’ contractual relationship vested at the time they began services [and] does not automatically mean that specific benefits vested at that time, without regard to the contemporaneous
The legislature amended the 1937 statute which was a part of appellant’s contract of employment with the City of Tucson. Tucson now attempts to apply the changes retroactively to vary the terms of its contract with appellant. We hold the changes, if applied to appellant without his assent, would constitute an alteration, a modification of his contract. This Tucson may not do.
Id. at 116,
¶23 The Bill’s changes to the Class Members’ pension contracts are consequently invalid under Yeazell. When the Class Members were elected or appointed as judges, they entered a contractual relationship with the State regarding the public retirement system of which they became members. Their retirement benefits were a valuable part of the consideration the State offered upon which the Class Members relied when accepting employment. See Fields,
¶24 EORP and the dissent both argue that this is not the end of the analysis. They note that Yeazell commented that if a governmental entity shows that its pension plan is actuarially unsound, “the law governing mutual mistakes of fact” applies. See
¶25 This Court’s reticence was appropriate. While the defense of mutual mistake of faet applies in any contract dispute, EORP and the State are unable to prove that defense as a matter of law. That defense requires that the party seeking to void a contract prove that (1) the parties made a mistake about a basic assumption on which they made the contract, (2) the mistake had a material effect on the exchange of per
¶26 First, EORP and the State cannot show that the parties made a mistake about a basic assumption of the Plan, They claim (and the dissent accepts, see infra ¶¶ 73,104) that the mistake was the parties’ shared assumption that the Plan was actuarially sound, meaning that the parties mistakenly believed that the Plan’s investment returns would be sufficient to maintain the Plan’s actuarial soundness without changing the benefit increases formula or the employee contribution rate. But disappointment about anticipated investment returns does not qualify as a mistake. See Restatement (Second) of Contracts § 152 cmt. b (noting that “market conditions and the financial situation of the parties are ordinarily not such assumptions,” and “mistakes as to market conditions or financial ability do not justify avoidance under the rules governing mistake”).
¶27 Second, even if unanticipated reductions in investment returns could qualify as a mistake, EORP and the State cannot show that the State did not bear the risk that this mistake might occur. The Legislature designed the Plan so that the State accepted the risk of variable investment returns. When investment returns are high, the State’s funding obligation through employer contributions is reduced or eliminated, as happened from 1998 to 2001. But when investment returns are low, the State’s funding obligation is necessarily increased. In either situation, however, the Class Members’ contribution rate remains fixed. Thus, the Class Members are not permitted to obtain any cost savings from higher investment returns, but they likewise are not required to pay more because of lower investment returns. The reward and risk of investment returns falls on the State. This is simply the nature of defined benefit plans. See Hughes Aircraft Co. v. Jacobson,
¶29 The dissent’s substantive concerns about our holding are, respectfully, not well taken. The dissent, however, raises one other concern that merits discussion. The dissent discusses at great length the perilous state of the Plan and this Court’s need to defer to the Legislature’s policy choices in making the Plan solvent, see infra ¶¶ 58, 64-66, 108, effectively asking this Court to get out of the way and let the Legislature fix the problem. This argument has been raised in other eases involving judicial pension reform, when state legislatures have run afoul of state constitutional provisions that preclude retroactive changes to judicial pensions. See In re Pension Reform Litig.,
¶30 But this is not a matter of refusing to defer to the Legislature on an issue of public policy. It is a matter of requiring the Legislature to follow the Arizona Constitution in setting that policy. We recognize that the financial soundness of public pension systems is a matter of great public importance. We acknowledge that devising measures to guarantee the Plan’s financial stability is difficult and fraught with unpleasant policy choices. But whatever measures the Legislature enacts to address the problem still must comport with the Arizona Constitution. See In re Pension Reform Litig.,
2. The Vesting Statute
¶31 EORP and the State further assert that although Yeazell established a contractual relationship between the State and its employees regarding pensions, the vesting statute, enacted in 2000, is part of the employment contract for any employee hired after that date and allows the Legislature to modify the pension terms for members before they retire. The vesting statute provides:
A. Because the plan as enacted at a particular time is a unique amalgam of rights and obligations having a critical impact on the actuarial integrity of the plan, the legislature intends that the plan as enacted at a particular time be construed and applied as a coherent whole and without reference*44 to any other provision of the plan in effect at a different time.
B. The plan was established in order to provide a uniform, consistent and equitable statewide program for those eligible elected officials as defined by the plan. A member of the plan does not have a vested right to benefits under the plan until the member files an application for benefits and is found eligible for those benefits. An eligible claimant’s right to benefits vests on the date of the member’s application for those benefits or the member’s last day of employment under the plan, whichever occurs first.
A.R.S. § 38-810.02. This Court has previously stated that rights legally vest “when the right to enjoyment, present or prospective, has become the property of some particular person or persons as a present interest.” Hall v. A.N.R. Freight Sys., Inc.,
¶32 EORP and the State argue that the term “vesting” as used in the statute refers to legal vesting and operates to permit a unilateral change to an employment contract. But if we were to accept their position, the vesting statute would alter earlier established substantive rights to particular retirement benefits, violating Yeazell. Thus, the vesting statute is constitutional only if it refers to contingent vesting. See Jones v. Sterling,
¶33 Consequently, under Yeazell and the vesting statute, a public employee’s interest in a retirement benefit or pension becomes a right or entitlement at the outset of employment, but the right to begin collecting pension benefits is contingent upon completing the requirements for retirement eligibility. See Fields,
ISSUES ON CROSS APPEAL
A. Attorneys’ Fees
¶34 On cross-appeal, the Class Members first argue that they are entitled to attorneys’ fees incurred before the trial court under A.R.S. § 12-341.01 because the action arose out of contract. EORP counters that A.R.S. § 12-341.01 is inapplicable because the action arose from constitutional or statutory obligations, not contractual obligations, even though the members’ employment contracts were implicated. We review de novo the applicability of A.R.S. § 12-341.01. See Ahwatukee Custom Estates Mgmt. Ass’n, Inc. v. Bach,
¶35 Section 12-341.01(A) provides that a court may award reasonable attorneys’ fees to the successful party in “any contested action arising out of a contract, express or implied.” When questions of contract are combined with other questions, judicial analysis whether the action is sufficiently contractual to invoke A.R.S. § 12-341.01(A) “has aptly focused on the substance of the action and the statutory policy to mitigate the burden of the expense of litigation to establish a just claim or defense.” A.H. By & Through White v. Ariz. Prop. & Cas. Ins. Guar. Fund,
¶36 Although this action might first appear to arise from constitutional or statutory interpretation, as EORP urges, a closer examination of the operation of those contractual provisions reveals otherwise. Sections 38-810 and 38-818 are part of the Plan’s statutory scheme to provide retirement benefits for elected officials. A.R.S. § 38-802. The Plan’s fund is used “exclusively for payment of benefits to retired members or their beneficiaries” and “for payment of the administration, operation and investment expenses of the plan.” Id.
¶37 As recognized in Yeazell, because the Gift Clause forbids the Legislature from providing gratuities, the right to receive retirement benefits necessarily arose as a condition of the employee’s contract of employment. See
B. Prejudgment Interest
¶38 The Class Members next contend that they are entitled to prejudgment interest on the principal amounts due under the judgment. EORP counters that the Class Members are not entitled to such an award because EORP cannot be charged in
¶39 Although the trial court found that awarding prejudgment interest in this case would not serve the purposes of prejudgment interest, “prejudgment interest on a liquidated claim is a matter of right” in a contract action. Metzler v. BCI Coca-Cola Bottling Co.,
¶40 Here, the principal amounts due are liquidated because they may be computed with exactness. One principal amount due is the excess payment contributions made by all Class Members. The other principal amount due is the delayed payments of permanent benefit increases under the former benefit increases formula to judges who have retired before this action has concluded. These amounts are readily determinable. Consequently, because the principal amounts due can be computed with exactness, the Class Members are entitled to prejudgment interest on those amounts at the rate determined pursuant to A.R.S. § 44-1201(F) (setting the rate for prejudgment interest).
C. Relief Also Against the State
¶41 The Class Members argue finally that judgment should also run against the State because the State voluntarily intervened and actively litigated the case. The State counters that the Class Members will obtain all the relief to which they may be entitled from EORP and that it intervened for the limited purpose of defending the Bill’s constitutionality. We hold that under the facts here, relief should also run against the State.
¶42 Arizona courts have previously held that intervenors may seek relief in civil rights actions, have judgments run against them, and be the prevailing party for purposes of the attorneys’ fees statute. See, e.g., Civil Rights Div. of Ariz. Dep’t of Law v. Super. Ct. In & For Pima Cty.,
¶43 Therefore, relief can run against an intervenor-defendant. Here, the State elected to intervene as a defendant—referring to itself as “Intervenor Defendant” in several pleadings—and fully participated in this litigation, as well as in Fields. Although the Class Members did not amend their complaint to assert a claim against the State, they did notify the parties that they would seek relief against EORP and the State, “It would be hypertechnical and unjust to preclude [Class Members] from recovering [relief] that they have earned, merely for failure to amend their complaint to expressly include [the State] within their demand for judgment.” Hassell,
III. CONCLUSION
¶44 For the foregoing reasons, we affirm the trial court's judgment with respect to the unconstitutionality of the two provisions of the Bill at issue, but reverse with respect to
Notes
. This provision was subsequently amended by Laws 2016, S.C.R. 1019, § 1, effective May 26, 2016. This amendment pertains only to the Public Safety Personnel Retirement System established by Chapter 38, Article 4.1, and thus does not affect the resolution of this case.
. The Class Members argue that even if the Bill does not violate the Pension Clause and Yeazell, it is still unconstitutional under the Contract Clauses of the United States and Arizona Constitutions and the Judicial Salary Clause of the Arizona Constitution. See Ariz. Const, art. 6, § 33; Ariz. Const, art. 2, § 25; U.S. Const, art. 1, § 10. We need not reach these arguments, however, because the Pension Clause and Yeazell resolve the fundamental issues regarding the Class Members' rights to tire benefit increases formula and the prior contribution rate.
. The Class Members argue that because Fields held that the Bill’s benefit increases formula provision was unconstitutional, the Bill is not entitled to such a presumption. But Fields decided only the Bill’s constitutionality with regard to retired judges and their entitlement to the benefit increases formula.
. EORP also claims that changes to the Class Members’ pension contracts may be justified under the defense of "commercial impracticability.” As with the defense of mutual mistakes of fact, however, "mere market shifts or financial inability do not usually effect discharge under the rule” of commercial impracticability. Restatement (Second) of Contracts § 261 cmt, b; accord id. at § 152 cmt. b (recognizing that the same analysis applies for mutual mistakes of fact and commercial impracticability). Any defense of commercial impracticability thus fails.
. The dissent contends that in ruling that EORP and the State are unable to establish the defenses of mutual mistake of fact and commercial impracticability, we are usurping the trial court's role by improperly determining as fact that poor investment returns were the cause of the Plan’s alleged actuarial unsoundness. See infra ¶¶ 104-106. The dissent maintains that EORP and the State "presented evidence of a variety of causes" and did not rely only on the Plan's poor investment returns. Id. This misunderstands the record and our ruling.
In the pleadings and arguments before the trial court, EORP and the State did not present a "variety of causes” for the Plan’s alleged actuarial unsoundness; they presented two: the Plan’s poor investment returns and the unsustainability of the former benefit increases formula. These are actually the same cause, however. The former benefit increases formula was based on the Plan’s investment returns, see Laws 1998, ch. 264 § 1; Fields,
Concurrence Opinion
concurring.
¶45 I concur in the court’s analysis, but I write separately to express my view that the superior court correctly ruled that Senate Bill 1609’s change to the Class Members’ contribution rate violates the Pension Clause of the Arizona Constitution. From my perspective, changing the employees’ pension contribution rate specified by statute—and thereby decreasing the employer’s funding share—diminished the employee’s public retirement system benefit. And because the Pension Clause provides that “public retirement system benefits shall not be diminished or impaired,” Ariz. Const, art. 29, § 1(C), the Bill is unconstitutional regardless whether it would survive scrutiny under the Contract Clause, and the remand urged by the dissent is unnecessary.
¶46 The defined benefit pension system to which Class Members belong guarantees each Class Member fixed monthly benefit payments from the time of retirement for the remainder of the retiree’s life. The cost of funding the post-retirement benefit payments is shared by Class Members and the State, with Class Members paying a fixed percentage of their salary at the rate specified in A.R.S. § 38-810, and the State responsible for the balance necessary (beyond investment earnings) to ensure the actuarial soundness of the pension system.
¶47 EORP and the State, as well as the dissent, posit that the Bill did not diminish or impair Class Members’ pension benefits because the Bill did not change the guaranteed monthly payments to which Class Members are entitled upon retirement. But under that view, the Legislature could unilaterally increase the employees’ contribution rate to the point that Class Members shoulder the entire cost of funding the public pension system rather than sharing the cost between employee and employer. And it would be nonsensical to suggest that converting a public employee’s employer-provided retirement benefit into an entirely self-funded retirement plan would not diminish the employee’s “public retirement system benefits.”
¶48 The same logic applies to a partial reduction in the employer’s share of contributions to a retirement plan. Consider, for example, an employment agreement in which an employer agreed to share in the cost of a $1,000,000 retirement annuity (to be purchased on the date of retirement) that would pay the employee $5,000 per month for the rest of the employee’s life. If the employer agreed to pay 60 percent ($600,000) of the cost to fund the annuity, with the employee responsible for the remaining 40 percent ($400,000), the value of the retirement benefit provided by the employer would be $600,000 as of the date of retirement. Under that scenario, increasing the employee’s share to 50 percent and reducing the employer’s contribution to 50 percent would mean that the value of the retirement benefit provided by the employer would only be $500,000, which would obviously be a reduction in that benefit.
¶49 This example highlights that the benefit to an employee participating in a pension plan should not be measured—as the dissent suggests—as simply the sum of the retirement payments received during a retiree’s lifetime. Rather, the value of the benefit to the employee is the amount the employer contributes to guarantee the stream of post-retirement payments. And when the employee’s contribution rate is a factor in determining the amount of the employer’s contribution, the employee’s contribution rate is a
¶50 The dissent relies on Taylor v. City of Gadsden,
¶51 There is no such modification provision applicable to Class Members in this case. Section 38-810 specified a fixed 7% employee contribution rate, and no representations were ever made to Class Members that their contribution rate could vary in any way. Had Class Members been advised at the outset of their employment that their contribution rate was subject to change by the Legislature (effectively setting a variable formula for employee and employer contribution rates), Class Members—like the employees in Taylor and Borders—would not have a claim under the Pension Clause that a promised benefit was taken away.
¶52 And therein lies the problem underlying the position taken by EORP and the State, as well as the dissent, because the analysis turns on the question of what pension benefits employees were promised when they were hired. At its core, this case is based on the simple premise that employees who accept employment are entitled to rely on promises made as part of their employment contract. And when those promises involve pension benefits for state employees, that guarantee carries constitutional weight. Here, because Class Members were promised a specified (fixed) pension contribution rate as part of their initial employment contract, the Bill’s changes to that rate diminished a promised benefit and thus contravened the Pension Clause.
¶53 The dissent asserts that the employee contribution rate was in fact variable, and that the Bill thus did not result in a Pension Clause violation. Although the constitutional provision regarding public retirement systems contemplates that total contributions will vary as necessary to ensure actuarial soundness, see Ariz. Const, art. 29, § 1(A), the provision says nothing about the employees’ and employer’s relative share of the total contribution amounts. And nothing in the language of § 38-810 or the terms of employment under which Class Members were hired suggests a variable rate.
¶54 The dissent notes that § 38-810 “has never contained language indicating an expectation or guarantee.” But the language of the statute creates precisely that expectation by imposing a fixed contribution rate for Class Members. And that language is in stark contrast to statutory language the Legislature has used in establishing other pension plans—such as ASRS—that impose a variable employee contribution rate. See A.R.S. § 38-736 (specifying that ASRS “member contributions are a percentage of a member’s compensation equal to the employer contribution”).
¶55 The Legislature could have similarly designed EORP from the outset with a variable employee contribution rate. But it is not our role to rewrite the original statute or adopt language from other statutes. See Hughes v. Jorgenson,
¶56 Finally, the dissent misses the mark by suggesting that this case “freez[es] employee contribution rates in perpetuity.” Nothing in the court’s opinion prevents the State from prospectively specifying—as part of an initial employment contract—that a defined-benefit employee is subject to a variable contribution rate or, as the State has actually done for judges appointed after the effective date of the Bill, provide new employees with a defined contribution pension plan. Moreover, although the dissent references pension systems involving other types of state employees while highlighting the economic concerns underlying pension reform proposals, the court’s decision addresses only a small percentage of state employees (judges) who are part of an independent branch of government and whose positions carry added constitutional protections. See Ariz. Const, art. 6, § 33 (providing that the Legislature cannot remove judges from office or reduce their salary). And although the State cannot fire judges or reduce their salaries, nothing prevents the State from negotiating a change to the contribution rate for judges and incentivizing such a change by, for example, conditioning future raises on an agreement to accept a higher contribution rate. Accordingly, the court’s decision does not “lock in” an unworkable contribution rate in perpetuity, and instead simply requires that changes to promised pension benefits be carried out in a manner that comports with constitutional principles.
. The dissent asserts that a guaranteed annuity as of the date of retirement is not an accurate way to portray Class Members’ retirement benefits because "in reality, under EORP, the payments are made and calculated during employment, based not only on that particular employee's circumstances but the pension system as a whole.” But while calculating the funding needed for the public retirement system admittedly requires a more complex actuarial model than this illustration, the shared funding obligations and fixed post-retirement payments of this guaranteed annuity example are in fact similar to the relevant provisions of the Class Members’ defined benefit pension.
. The retirement payment amount is similarly protected under the Pension Clause. Assuming (as § 38-810 specified) a fixed employee contribution rate, a reduction in the post-retirement payment obligation would reduce the employer’s funding share, thus diminishing the employee's pension benefit in violation of the Pension Clause.
. The dissent asserts that the employee contribution rate specified by § 38-810 "has varied over time,” and that the rate "has changed multiple times over the years.” In fact, the rate was changed only once: an increase from 6% to 7% in 1987, shortly after EORP was created. A single statutory modification almost three decades ago—and over a decade before adoption of the Pension Clause—does not establish that the rate is variable at the Legislature’s will, much less that such modification comports with the strictures of the Pension Clause. Nor does it foreclose the argument—not at issue here—that an employee hired with the promise of a 6% contribution rate would be entitled to that rate notwithstanding the statutory change.
. This means that for ASRS members, who as the dissent acknowledges make up the overwhelming majority of state employees (approximately 535,-000 of 582,000), the contribution rate is not fixed as a specified percentage of the employee’s salaty, but—consistent with the statutoiy terms of the employment contract—can increase or decrease (just as the State’s rate can correspondingly go up or down) depending on the amount needed to fund the overall ASRS pension fund.
Concurrence Opinion
joined by TREBESCH, J., dissenting in part and concurring in the judgment in part.
¶57 The majority today holds unconstitutional statutory changes to the permanent benefit increase (“PBI”) formula and contribution rates as applied to active members of EORP. We respectfully dissent from the holding that changes to contribution rates are unconstitutional and otherwise concur in the result.
¶58 This case involves an anomaly that is largely this Court’s invention. Most Arizona state employees are at-will employees. EORP’s active members are either elected officials or judges who serve for fixed terms. No formal contract exists between the state and those employees. However, in a work of legal fiction to which the likes of John Gris-ham could only aspire, this Court fifty-one years ago implied such a contract for purposes of pension benefits, whose terms are largely set upon the employment date and whose benefits extend far beyond retirement until the employees’ beneficiaries pass on.
I.
A. Factual Background
¶59 Arizona has four statewide retirement plans for public employees: the Arizona State Retirement System (“ASRS”), EORP, the Public Safety Personnel Retirement System (“PSPRS”), and the Corrections Officers Retirement Plan (“CORP”). See Hayleigh S. Crawford, Going For Broke: Arizona’s Legal Protection of Public Pension Benefits, 46 Ariz. St. L.J. 635, 655 (2014). EORP is by far the smallest.
¶60 In 1985, the Legislature enacted EORP, which provided to elected officials, including judges, a pension in the amount of three and one-third percent of salary for each year worked, up to eighty percent of average yearly salary after twenty years of employment, which was increased to four percent in 1988. See 1985 Ariz, Sess. Laws, ch. 309, § 4 (1st Reg. Sess.) (codified at A.R.S. § 38-808(B)(l) (1985)). That promised benefit, which essentially places elected officials and judges on par with first responders, has never been changed.
¶61 The EORP Plan has four funding sources: employer contributions, employee contributions, court filing fees, and investment proceeds. The employee contribution rate is set by statute and has changed over time. In 1985, it was set at six percent of the employee’s gross salary. See id. (codified at A.R.S. § 38-810(A) (1985)). In 1987, it was increased to seven percent. See 1987 Ariz. Sess. Laws, ch. 146, § 4 (1st Reg. Sess.) (codified at A.R.S. § 38-810(A) (1987)).
¶62 By contrast, employer contributions are determined by actuarial calculations of the amount needed to fund the plan in light of projected payouts and investment income, in order to cover both normal service costs and the amortized amount of the unfunded actuarial accrued liability over a period not to exceed thirty years. In recent years, the employer contribution rate has increased dramatically, from a low of 6.97 percent of each employee’s salary in 2002 to 29.79 percent in 2011, the year in which the reform at issue was adopted. According to EORP, the rate has continued to increase every year since then, to 39.62 percent in the fiscal year ending in 2014. In other words, the employer’s contribution rate has increased 568 percent in twelve years.
¶63 Also at issue in this case are “permanent increases in base benefits” for retired employees. In 1990, the state enacted the first statutory PBI formula, providing retirement payment increases based on the Plan’s investment earnings. 1990 Ariz. Sess. Laws, ch. 236, § 4 (2d Reg. Sess.) (codified at A.R.S. §§ 38-818(B), (E), (F) (1990)). If investments returned more than nine percent, half of the return would be used to fund increases up to four percent, with any remainder placed into a reserve for future benefits increases. Id. After that statute expired in 1994, the Legislature enacted a new PBI formula the following year. Increases were based on the Plan’s investment returns, capped at the lesser of three percent or half of the percentage change in the consumer price index. 1996 Ariz. Sess. Laws, ch. 198, § 1 (2d Reg. Sess.) (codified at A.R.S. § 38-818(F) (1996)). In 1998, the Legislature raised the maximum possible increase to four
¶64 The statute at issue in this case is part of a nationwide effort to reform public pensions. As a result of recession and insufficient contributions, as of 2010, public pensions for state employees nationally were underfunded by an estimated one trillion dollars. Pew Center on the States, The Trillion Dollar Gap: Underfunded, State Retirement Systems and the Roads to Reform at 1-3 (2010). Between 2008 and 2013, every state passed some type of pension reform legislation. See National Conference of State Legislatures, Pensions and Retirement State Legislation, available at http://www.ncsl.org/research/ fiscal-policy/pension-legislationdatabase.aspx (last visited Mar. 7, 2016).
¶65 Arizona’s public pensions were not immune to these financial challenges. In 2010, Arizona taxpayers were paying at least $1.39 billion annually to fund the state pension systems, a 448 percent increase from ten years previously and more than the estimated cost for higher education, corrections, or healthcare for indigent people. Crawford at 637. Serious reversals in investment returns in 2000, 2008, and 2009, combined with significant actuarial errors pertaining to the PBI mechanism, contributed to what EORP characterizes as “dramatic decreases” in the Plan’s funding ratio—a benchmark of financial soundness calculated by dividing the plan’s assets by its liabilities. The funding ratio decreased from 141.7 percent in 2001 to 58.4 percent in 2012, a decline EORP considers “alarming.” See generally Fields,
¶66 In an effort to place EORP, CORP, and PSPRS on a more sound financial footing, the Legislature passed S.B. 1609 in 2011. As relevant here, the statute increased the employee contribution rate from seven percent to ten percent for fiscal year 2011-12, to 11.5 percent in 2012-13, and a maximum of thirteen percent thereafter. A.R.S. § 38-810(F)(l)-(4) (2011), renumbered as A.R.S. § 38-810(G)(l)-(4) (2013). The Legislature also included a “maintenance of effort” clause, which provides that employee contributions above seven percent of salary shall not be used to reduce the employer’s contribution. A.R.S. § 38-810(G) (2011), renumbered as A.R.S. § 38-810(H) (2013).
¶67 Senate Bill 1609 also made changes to the PBI formula in EORP, PSPRS, and CORP. First, it ended future inflows into the PBI reserve fund. A.R.S. § 38-818.01(E). Second, it increased the investment return rate upon which future PBIs would be calculated. A.R.S. § 38-818.01(D). Finally, it maintained a four percent maximum for future benefit increases, it pegged such increases to the Plan’s funding ratio, with larger benefit increases as the actuarial soundness of the Plan improved. A.R.S. § 38-818.01(0). These changes—the increased employee contribution rate and the changes in the PBI formula—are at issue here.
¶68 In 2013, EORP was closed to new members so that elected officials and judges taking office thereafter are no longer eligible. 2013 Ariz. Sess. Laws, ch. 216, § 9 (1st Reg. Sess.). Instead, they participate in a “defined contribution” program.
B. Applicable law
¶69 The Contract Clause of our Declaration of Rights, comprised by Arizona Constitution article 2, section 25, provides that “no ... law impairing the obligation of a con
¶70 This Court first held that public pension benefits are contractual rights in Yeazell,
¶71 More specifically, the Court held that “the laws of the state are a part of every contract.” Id. at 113,
¶72 The Court in Yeazell and subsequent cases essentially created a one-way ratchet. Baseline benefits are set on the employment date. They can be increased but never decreased without members’ consent. Such un-bargained for, open-ended benefits are hardly compelled by the Gift Clause, though they might well be forbidden by it. Cf. Turken v. Gordon,
¶73 However, the Yeazell decision embraced a vitally important limiting principle to ensure that the supposed pension contract would not necessarily be a financial suicide pact for the taxpayers. “We do not ... mean to imply what rights or remedies might be available to either party in a situation where it is established that a retirement plan is actuarially unsound,” the Court declared. Id. at 117,
¶74 In 1998, upon legislative referral, Ati-zona voters enacted Proposition 100, which added article 29, section 1 to the Arizona Constitution. Most relevant to the issues pre
¶75 In Fields, this Court struck down under the Pension Clause S.B. 1609’s change in the permanent benefit increase formula as to retired EORP members.
¶76 In this action, on cross-motions for summary judgment, the trial court concluded that the changes to the permanent benefit increase formula and contribution rates for active Plan members violated the Pension Clause. Because it so ruled, it did not reach any of the other constitutional issues. Although we agree with the majority’s outcome on the PBI formula issue, we believe that the contribution rate is not a pension “benefit,” and that the trial court improperly granted summary judgment to the plaintiffs without considering defendants’ defenses under Yea-zell or the Contract Clause.
II.
A. The Pension Clause
¶77 Although the majority reaches the Pension Clause issue only with regard to the PBI formula and not to contribution rates, we consider it in both contexts because it was the sole basis for the trial court’s contribution rates ruling as embraced by the concurring opinion.
¶78 “In interpreting a constitutional amendment, our primary purpose is to ‘effectuate the intent ... of the electorate that adopted it.’ ” Id. at 219 ¶ 19,
¶79 In addition to the text’s plain language, the ballot pamphlet can aid in determining the electorate’s intent. See Calik v. Kongable,
¶80 That objective reflects in the first two of article 29, section l’s three substantive provisions. Subsection A declares, “Public retirement systems shall be funded with contributions and investment earnings using actuarial methods and assumptions that are consistent with generally accepted actuarial standards.” Subsection B provides, “The assets of public retirement systems, including investment earnings and contributions, are separate and independent trust funds and shall be invested, administered and distributed as determined by law solely in the interests of the members and beneficiaries of the public retirement systems.”
¶81 On its face, subsection C, at issue here, makes two changes from prior law regarding pension contracts.
¶82 Second, subsection C states that “public retirement system benefits shall not be diminished or impaired.” This too marks a departure from prior law, more favorable to Plan members and beneficiaries in this instance because it suggests that benefits cannot be diminished or impaired 'period, even in light of contract defenses that might previously have been raised under Yeazell.
¶83 It therefore makes an enormous difference whether a particular pension contract provision is a “benefit.” If so, it is legally sacrosanct; if not, it is subject to the Contract Clause’s modification rules. The Court recognized this crucial distinction in Fields, declaring that the “Contract Clause applies to the general contract provisions of a public retirement plan, while the Pension Clause applies only to public retirement benefits.”
B. Permanent benefit increases
¶84 This Court decided in Fields that the PBI formula for retired Plan members is a benefit. Because S.B. 1609 diminished or impaired that benefit, it violated the Pension Clause.
¶85 The State and EORP argue that the vesting statute, A.R.S. § 38-810.02, changed the pension contract for employees hired after its 2000 effective date. Specifically, they urge that for such employees, benefits do not vest until retirement, hence the state may determine benefit increases upon retirement.
¶86 As a general proposition, we agree with defendants that the state is free to change pension terms or benefits or eliminate them altogether for new employees, as the state did by changing to a defined-contribution system for judges and elected officials in 2013. But their interpretation of the vesting statute collides with the contractual nature of public pensions, under Yeazell and as embraced and modified by article 29, section 1. Prior to the vesting statute in 2000, all seem to agree that Plan members had a contractual expectation of a particular formula for permanent benefit increases. The State and EORP posit that after the vesting statute, that contractual expectation was replaced by a contingent expectation; that is, the state may determine benefit increases upon retirement.
¶87 Such a contingent, open-ended possibility fails for two reasons. First, it does not provide a sufficiently definite term to satisfy the requirement of contractual consideration. See, e,g., Savoca Masonry Co. v. Homes & Son Constr. Co.,
¶88 Accordingly, we conclude that the vesting statute did not alter the contractual expectations of EORP Plan members, and thus the Court’s conclusion in Fields that the PBI formula is protected by the Pension Clause also controls here. Because S.B. 1609’s modification to the PBI formula impaired or diminished that benefit for active Plan members, it violates the Pension Clause.
C. Contribution Rates
¶89 By contrast, contribution rates are not benefits and thus do not fall within the Pension Clause’s strictures.
¶90 By their nature, pension plans fall into one of two categories: defined benefits or defined contributions. In the former, benefits are fixed but the contributions may vary; in
¶91 Article 29, section 1(B) uses the term “contributions” and makes clear they are Plan “assets,” providing that they are to be held in trust for the Plan’s beneficiaries. Section 1(A) provides that public pension systems “shall be funded with contributions and investment earnings using actuarial methods and assumptions that are consistent with generally accepted actuarial standards.” That language indicates contributions are not fixed, but rather may vary over time to ensure the Plan’s financial integrity. Indeed, at oral argument, plaintiffs’ counsel could point to nothing in the ballot materials that would have placed voters on notice that the state could not adjust employee contribution rates to ensure the Plan’s financial viability.
¶92 Thus, unlike the PBI formula to which an employee is contractually “entitled” according to statutory provisions in effect on the hiring date, Fields,
¶93 The employee contribution rate statute, A.R.S. § 38-810, has never contained language indicating an expectation or guarantee. In fact, the employee contribution rate has varied over time, including an increase from six to seven percent in 1987, shortly after EORP was created. See 1987 Ariz. Sess. Laws., eh. 146, § 4 (1st Reg. Sess.) (codified at A.R.S. § 38-810(A) (1987)). Arizona tax statutes also treat pension contributions and benefits differently, with the former generally shielded and the latter generally exposed to taxation. See A.R.S. §§ 38-810, -810.01, - 811, 43-1022. Arizona contribution rate statutes thus do not exhibit the indicia of contractual entitlement that the Court found with regard to the PBI formula in Fields,
¶94 Other courts that have considered the precise issue of whether pension contribution rates are a benefit have held they are not. In Taylor v. City of Gadsden,
¶95 The Georgia Supreme Court likewise recently considered a challenge to sizable increases in employee contribution rates. The court observed that the “pension contribution increases were not retroactive and did not change a member’s benefit formula, calculation of pension benefit, or actual benefit amount payable at the time of retirement.” Borders v. City of Atlanta,
¶96 Furthermore, if contribution rates were benefits, we have difficulty perceiving which aspects of the pension contract would be subject to the Contract Clause rather than to the absolute prohibition against benefit impairment in article 29, section 1(C). Rather, as the Court stated in Fields, that special protection is reserved for benefits, which contribution rates are not. Indeed, we are loath to attribute to voters the intent to have taxpayers alone shoulder all unanticipated financial burdens of guaranteed pension payouts, absent clear evidence they were placed on notice that they were doing so when they adopted article 29, section 1.
¶98 Judge Cattani compares the defined-benefit contribution to an annuity. Respectfully, it is not. The common definition of annuity is “[a] fixed sum of money payable periodically.” Black’s Law Dictionary 105 (9th ed. 2009). The defined-benefit pension, by contrast, involves fixed benefits but requires variable payments. Judge Cattani seems to recognize that distinction by observing that if this were an annuity, the amount of payments, or cost, would “be determined upon the employee’s retirement.” But in reality, under EORP, the payments are made and calculated during employment, based not only on that particular employee’s circumstances but the pension system as a whole; indeed, deferring until retirement the amount of an employee’s compensation would present Gift Clause problems because it would be indeterminate and open-ended. Perhaps the legislature could improve the current system by purchasing annuities for its employees, but that is not the system before us.
¶99 Judge Cattani also observes that the system has no “modification provision” to alert employees that contribution rates might go up. Were this a real rather than fictional contract, perhaps it would contain such a provision. As with many benefits, such as health insurance, parking, or public transit passes, employee costs can vary. The benefit is the outcome, not how much it costs the employer or employee. That is the nature of a defined-benefit as opposed to a defined-contribution retirement plan. Moreover, as noted, the statutes governing employee contributions have never created an expectation or entitlement, and the rate has changed multiple times over the years. A post hoc transformation of a defined-benefit pension plan into an annuity whose cost is determined upon retirement does not alter the legal reality that employee contribution rates are not benefits.
¶100 For the foregoing reasons, the trial court erred in holding that S.B. 1609’s employee contribution rate increase violates the Pension Clause, the sole basis for its ruling on contribution rates.
D. The Contract Clause and Yeazell
¶101 The majority bases its decision striking down the contribution rate changes on its view that Yeazell allows no changes whatsoever to a pension plan that are to the members’ disadvantage, absent the members’ consent. As we noted earlier, that conclusion misreads Yeazell, which expressly recognizes contract defenses such as mutual mistake regarding the Plan’s actuarial soundness.
¶102 The majority says we “over-read” Yeazell because although it recognizes the mutual mistake defense, the Court stated it did “not, however, mean to imply what rights or remedies might be available to either party in a situation where it is established that a retirement plan is actuarially unsound. This is a matter beyond the issues of the present litigation.” See ¶ 24 (citing Yeazell,
¶103 Because this ease was decided on cross-motions for summary judgment, the trial court made no factual findings on contract defenses. As this Court is not affirming the trial court’s ruling that the change in employee contribution rates violates the Pension Clause, and as the parties below fiercely contested the factual issues pertaining to contract defenses, affirming the summary judgment is manifestly inappropriate. See Ariz. R. Civ. P. 56(a); see also Peterson v. Valley Nat. Bank of Phoenix,
11104 Rather than remand the issue for factual determination, the majority dons trial
¶105 The majority errs even more fundamentally by beginning and ending its analysis with Yeazell. Article 29, section 1 now governs the contractual relationship regarding public employee pensions. Section 1(C) very plainly states that although benefits are sacrosanct, other parts of the pension contract are governed by the Contract Clause. We said as much in Fields,
¶106 But ignore it the majority does, justifying itself with the proposition, remarkable on multiple levels, that “analyzing whether the Bill would pass review under the Contract Clauses were it not for Yeazell and the Gift Clause is unnecessary and violates the principle of judicial restraint.” See ¶ 28. Article 29, section 1 governs public pensions. It does so in all, not just some, of its particulars. Declining to apply all of its provisions is not judicial restraint but pick-and-choose jurisprudence.
¶107 As we decided in Fields, public pension contract terms that are not benefits are subject to the Contract Clause. Neither this Court nor the trial court made the requisite determination that the contribution rate changes violate the Contract Clause; thus, remand is imperative. See State v. Brita,
III.
¶108 If ever there were a case in which we should seriously indulge the presumption of statutory constitutionality, this is it. The majority winks at that rule, then utterly fails to apply it. It repeatedly invokes the mantle of judicial restraint while casually invalidating a statute designed to preserve the financial stability of a public employee pension plan, a purpose so important that the voters made it part of our state’s organic law.
¶109 The majority opinion portends a huge financial windfall for the class members, a burden the taxpayers will shoulder. Under such circumstances, we should act with great restraint, lest the rule of law be undermined
. ASRS covers about 535,000 members, EORP has approximately 2,000, and PSPRS and CORP together have about 45,000. Id.
. A defined contribution plan does not provide a guaranteed benefit amount at retirement. Rather, employers and employees contribute to a plan in which benefits are based on contributions plus or minus investment returns.
. The Gift Clause, in article 9, section 7 of the Arizona Constitution provides, "Neither the state, nor any ... subdivision of the state shall ever ... make any donation or grant, by subsidy or otherwise, to any individual, association, or corporation. ...”
. This provision is now codified in sections C and D of article 29, section 1 of the Arizona Constitution. See Laws 2016, S.C.R. 1019, § 1, Prop. 124, approved election May 17, 2016, eff. May 26, 2016.
. We presume that the legislature (in this instance, the measure’s drafters and the electorate) knows the prior law, and if it changes that law, that it intends that those changes have real and substantial effect. See, e.g., Stone v. I.N.S.,
