Author's note. Adapted from the author's amicus brief on behalf of Paul Kogut, plaintiff in a medical malpractice case pending in Henry County State Court (File No. STSV 2025 004331), filed December 11, 2025 in the Georgia Supreme Court appeal in which the appellants ask the Court to overrule its decision in Atlanta Oculoplastic Surgery v. Nestlehutt, 286 Ga. 731 (2010). The brief is the empirical companion to a separate appellee-side amicus by John Como, which argues that damage caps fail strict-scrutiny means-end fit on a purely rational analysis of the law. The Como argument is treated in a separate piece on this site, Property rights as a constitutional limit on statutory damage caps. This article supplies the parallel record from the professional literature.
Why the means-end inquiry is empirical here
The Court has held that the damage caps affect a fundamental right — the right to a jury trial. As argued in the Como brief, the damage caps also affect property rights, another fundamental right. On either characterization, the rationale for the damage caps must be evaluated rigorously. Cf. Ambles v. State, 259 Ga. 406 (1989) ("a statute is tested under a standard of strict judicial scrutiny if it … interferes with the exercise of a fundamental right. Strict judicial scrutiny demands that the statute be narrowly tailored to serve a compelling state interest.").
The legislative findings for 2005 Ga. SB 3 declared two purposes — premium reduction and improved healthcare quality — but did not explain how any of the dozen measures in the Act would achieve either purpose. To evaluate the potential rationale, the Court must look to sources other than the legislative findings themselves. The Como brief makes the rational case that the means do not fit the ends. This article supplements that case with the professional literature, because reality is complicated, and intuitive conclusions can turn out to be wrong in concrete fact. Empirical confirmation is important. On these two purposes, the literature uniformly confirms what rational analysis already shows.
Premiums: four "hard markets," and caps that did not move them
There have been four periods of "crisis" in medical malpractice insurance rates, corresponding to "hard markets" in which insurance company profits suffered: the mid-1970s, the mid-1980s, the early 2000s, and the late 20-teens / early 2020s. Each period produced tort reform efforts. Each is also a natural experiment, and the data from those experiments is now extensive.
The structural starting point matters. Insurance company profits depend on many things — not just claim payouts, but also returns on investments and the companies' ability to collude with each other to fix prices. As to claim payouts, it makes no difference to the insurance company if a verdict exceeds the coverage limits. If a policy provides coverage for $1 million, it does not matter to the insurance company whether the judgment is $1 million or $1 trillion. Either way, the company is responsible for $1 million and no more. Simplistic stories about "nuclear verdicts" causing high insurance premiums therefore require informed scrutiny — not because the verdicts are not large, but because they do not, by their size, increase what the insurer pays.
California, 1975 → 1988.
In September 1975, California became the first state to adopt medical malpractice damage caps. But premiums in California continued to rise sharply during the next decade. Rates stabilized only after the state enacted strict insurance regulation in 1988, with Proposition 103. A Consumer Watchdog report in 2013 compared the premium increase / decrease rates in the 13 years after the caps statute (MICRA) was passed against the rates in the 23 years after California started regulating premiums. The contrast is stark. Whatever effect the caps had on insurance company payouts, it did not translate into savings for healthcare providers until California started regulating rates.
Angoff (1988) and the four-state record.
By the late 1980s, after the second hard market, there was empirical data to test the claimed connection between damage caps and insurance premiums. A 1988 article in the Yale Journal of Regulation took stock of the evidence. The article is worth quoting at length, because the paraphrase does not improve on the original:
A substantial body of empirical evidence … demonstrates that there is no causal relationship between expanding (or contracting) tort law and rising (or falling) insurance rates.
For example, under contract with the U.S. Health Care Financing Administration, Vanderbilt University economics professor Frank Sloan studied the medical malpractice "reforms" enacted during the mid-1970s. During that time more than a dozen states limited medical malpractice liability, typically by capping noneconomic damages. Using regression analysis, Professor Sloan found that such limitations had no effect on insurance premiums.
As Professor Sloan's study would suggest, the states that enacted substantial tort reform measures in the mid-1970s did not escape the insurance crisis of the mid-1980s. In 1978, Pennsylvania limited the liability of all municipalities to $500,000 per occurrence and granted absolute immunity to municipalities in several classes of cases, thereby "stopping most claimants who otherwise have suffered legitimate injuries dead in their tracks." Nevertheless, Pennsylvania municipalities found it no easier to get insurance during the 1985-86 crisis than did municipalities in states where municipal liability is unlimited.
The continued escalation of rates and refusals to write in states that enacted tort reforms during the insurance crisis of the mid-1980s provides further evidence. For example, in April 1986, the Colorado legislature capped noneconomic damages, limited punitive damages, eliminated joint and several liability, and eliminated the collateral source rule. Soon after the bill was enacted, the Hartford Insurance Company, one of the nation's largest insurers, announced that beginning in 1987 it would no longer write medical malpractice insurance in Colorado, leading Republican legislators to charge that "the insurance industry deceived the legislature when it pushed the reforms as dealing with the liability crisis."
Perhaps the most compelling evidence that tort reform has not affected insurance rates comes from insurance companies themselves. For example, in 1986, Florida enacted what Aetna Casualty & Surety Co., the nation's third largest insurer, characterized as "full-fledged tort reform." Yet in connection with its request for a rate increase soon after the law was enacted, Aetna conducted a study concluding that the Florida tort reforms would have no effect on its rates.
Angoff's diagnosis points beyond tort liability to the structural cause: "the real culprit is the [federal] antitrust exemption enjoyed by the insurance industry." The McCarran-Ferguson antitrust exemption "permits price fixing, market division, tying arrangements, and other anticompetitive activities in the insurance industry, collusion and price-fixing." See Jay Angoff, Insurance Against Competition: How the McCarran-Ferguson Act Raises Prices and Profits in the Property-Casualty Insurance Industry, 5 Yale J. on Reg. 397 (1988).
Americans for Insurance Reform, 2016.
A decade after the third hard market in the early 2000s, additional evidence had accumulated. In 2016, Americans for Insurance Reform conducted another study of the claimed relationship between tort verdicts and liability insurance premiums, examining four decades of medical malpractice claims and premiums, adjusted for inflation and by the number of U.S. doctors. AIR summarized the findings:
[T]otal payouts over the last four decades have never spiked and have generally tracked the rate of inflation. Premiums, on the other hand, sharply increased for doctors three times over the last 40 years — in the mid-1970s, in the mid-1980s, and in the early 2000s. Each time, these volcanic eruptions in medical malpractice insurance rates developed into liability insurance "crises" for doctors. These past crisis periods — also called "hard markets" — lasted three to four years and were followed by years of stable or even declining rates, called "soft markets." These data also make clear that those sudden "hard market" rate hikes did not track malpractice claims or payouts whatsoever. Instead, rates rose or fell in sync with the insurance "cycle," dictated by the state of the economy and insurance industry profitability, including gains or losses experienced by the insurance industry's bond and stock market investments.
The data plainly show that "hard markets" are not caused by tort system costs. However, for political effect during each crisis period, the insurance industry falsely blames lawsuits and the small number of injured patients who sue in court for the industry's decision to impose severe rate hikes on doctors. The data make clear that enacting "tort reform" does not lower rates or prevent future crises.
The bottom line on premiums.
These are nationwide studies. They do not depend on any quirk of Georgia insurance law. They merely confirm what seems apparent from a purely rational analysis of the law: "nuclear verdicts" and the like do not matter to insurance companies (so long as they act in good faith), and the damage caps have no meaningful connection to the legislative purpose of reducing malpractice insurance rates. The literature corroborating this conclusion is broader than the three pieces above — see, for example, Tom Baker, Medical Malpractice and the Insurance Underwriting Cycle, 54 DePaul L. Rev. 393 (2005); David J. Nye et al., The Causes of the Medical Malpractice Crisis: An Analysis of Claims Data and Insurance Company Finances, 76 Geo. L.J. 1495 (1988); Robert B. McKay, Rethinking the Tort Liability System: A Report from the ABA Action Commission, 32 Vill. L. Rev. 1219 (1987).
Quality of care: the modern systems-and-culture frame, and what the disincentive does to it
The primary purpose of 2005 Ga. SB 3 was to reduce malpractice insurance rates. But the legislative findings (at § 1) said the Act was also intended to promote the quality of healthcare. The Como brief offers a purely rational analysis on this point too: by decreasing accountability for medical negligence, damage caps would increase rates of medical negligence. The professional literature supports that conclusion — and supplies a deeper factual context that makes the disincentive effect more, not less, important than the rational analysis suggests.
The starting place is the Institute of Medicine's landmark 2000 report To Err Is Human: Building a Safer Health System, which framed the patient-safety problem as one that the healthcare industry will not solve unless external pressure makes errors costly to the institutions involved:
The combined goal of the [NIH] recommendations is for the external environment to create sufficient pressure to make errors costly to health care organizations and providers, so they are compelled to take action to improve safety.
Damage caps cut directly against that recommendation. They reduce the cost of errors to health care organizations and providers, which is the opposite of the external pressure the IOM identified as essential.
Why the modern frame puts management at the center.
In the 25 years since To Err Is Human, an enormous amount of research has accumulated on medical error and patient safety. Today the consensus view is that healthcare management and administration play a central role in patient safety. The consensus view is that medical errors usually come from a combination of (a) human errors within (b) a flawed system or culture. People being what we are, some amount of human error is inevitable, and healthcare organizations are large and complex — which increases the opportunities for human error. So the key to improving patient safety is to create systems and organizational cultures that reduce the likelihood of error in the first place and make it less likely for errors to reach the patient. As one textbook on patient safety put it in 2018:
[T]he problem of medical errors is not fundamentally one of "bad apples" (though there are some), but rather one of competent providers working in a chaotic system that has not prioritized safety. … Decades of research, mostly from outside healthcare, has confirmed our own medical experience: Most errors are made by good but fallible people working in dysfunctional systems, which means that making care safer depends on buttressing the system to prevent or catch the inevitable lapses of mortals. This logical approach is common in other complex, high-tech industries, but it has been woefully ignored in medicine. Instead, we have steadfastly clung to the view that an error is a moral failure by an individual, a posture that has left patients feeling angry and ready to blame, and providers feeling guilty and demoralized. Most importantly, it hasn't done a damn thing to make healthcare safer.
That puts healthcare managers at the center of patient-safety efforts. An individual physician or nurse is generally powerless to fix — or sometimes even know about — weaknesses in the system. Medical error and patient safety are largely issues of management, a different discipline than doctoring or nursing. Thus, for example, Recommendation 8.1 of To Err Is Human: "Chief Executive Officers and Boards of Trustees should be held accountable for making a serious, visible and on-going commitment to creating safe systems of care." The Joint Commission, the primary accrediting board for American hospitals, makes the point with the same emphasis:
In any health care organization, leadership's first priority is to be accountable for effective care while protecting the safety of patients, employees, and visitors. Competent and thoughtful leaders contribute to improvements in safety and organizational culture. They understand that systemic flaws exist and each step in a care process has the potential for failure simply because humans make mistakes.
The Joint Commission's Sentinel Event Database reveals that leadership's failure to create an effective safety culture is a contributing factor to many types of adverse events — from wrong site surgery to delays in treatment.
The denial pattern when real stakes are on the table.
The old "bad apples" view dies hard. In practice, when there are real stakes on the table, healthcare managers still treat patient safety as the province of frontline clinicians, and medical error solely as the fault of clinicians. Even the most sophisticated healthcare organizations in Georgia — when there are real stakes — refuse to admit the most basic responsibilities of management. In a court filing, Emory Healthcare, Inc. denies this statement: "Hospital companies must make patient safety a top priority, create and maintain a culture of safety in the hospital, and manage the hospital to actively implement (not just paper the file with) policies and procedures that address the dangers of medical error." That seems obvious, but Emory denies it. See ¶ 17 of the 6/28/2024 Amended & Restated Complaint and the 7/26/2024 Answer of Emory Healthcare, Inc. in Holloway v. Kaiser Permanente et al., File No. 23A01035 (DeKalb County State Court).
Piedmont Healthcare, Inc. denies these statements:
- The complexity of healthcare creates a need for good management of healthcare facilities.
- Healthcare corporations play a critical role in protecting patients from medical error.
- Healthcare corporations must work diligently to protect patients from medical error.
- Protecting patients from medical error must be a top priority of any healthcare corporation — starting at the top, with the Board and the Chief Executive Officer.
Again, these points should be obvious, but Piedmont denies them. See ¶¶ 180-84 of the 5/10/2024 Complaint and the 6/19/2024 Answer of Piedmont Healthcare, Inc. in Crawford v. Piedmont Healthcare, Inc. et al., File No. 2024RCSC00591 (Richmond County State Court). The premise is that Emory and Piedmont are telling the truth in their answers — that the answers reflect their real beliefs. If they are giving false answers in formal court filings, that is a different problem.
Slow industry progress.
These denials track the broader pattern of slow industry uptake of the patient-safety mindset that even the industry now generally acknowledges. As noted above, in 2018 the authors of Understanding Patient Safety wrote that "we have steadfastly clung to the view that an error is a moral failure by an individual." A 2022 update by the National Academies confirms the trajectory: "Though patient safety has improved since 1970, progress has been slower than was expected after the release of the Institute of Medicine's 1999 report To Err Is Human."
Empirical confirmation of the disincentive effect.
All of this brings the analysis back to incentives — but now with deeper factual context. People respond to incentives and disincentives, so less accountability would mean more negligence. To that we now add: the traditional view of medical error as a "bad apple" problem misframes the issue; the truth is that medical error is primarily a matter of creating and managing safe systems and a culture of safety; managers are at the center of patient-safety efforts; progress in patient safety has been slow; and even sophisticated healthcare companies, when there are real stakes involved, deny the basic responsibility of managers for patient safety. Each of these adds force to the original IOM point that the external environment must "create sufficient pressure to make errors costly to health care organizations and providers, so they are compelled to take action to improve safety."
Damage caps thwart that effort. Empirical studies confirm that they do, with measurable consequences for patient safety. From Zabinski & Black, The deterrent effect of tort law: Evidence from medical malpractice reform, J. Health Econ. (July 2022):
We examine whether caps on noneconomic damages in medical malpractice cases affect in-hospital patient safety. We use Patient Safety Indicators — measures of adverse events — as proxies for safety. In difference-in-differences ("DiD") analyses of five states that adopt caps during 2003-2005, we find that multiple measures of non-fatal patient safety events worsen after cap adoption relative to control states.
Currie & MacLeod, examining U.S. birth records for 1989-2001 in NBER Working Paper 12478 ("First Do No Harm? Tort Reform and Birth Outcomes"), reach a parallel result: "reforms of the 'deep pockets rule' reduce complications of labor and C-sections, while caps on noneconomic damages increase them." The study concludes that "there are important interactions between incentives created by tort law and other incentives facing physicians."
The professional literature, including the empirical studies, confirms the intuitive point: damage caps undermine the legislature's declared purpose of improving the quality of healthcare, by reducing accountability — by reducing the disincentives to lapses of diligence.
Putting it together: what this does to means-end fit
Strict scrutiny asks whether the statute is narrowly tailored to a compelling state interest. The legislature declared two interests for 2005 Ga. SB 3. On both, the empirical record runs against the statute.
The premium-reduction interest: even granting it as compelling, the means do not fit. Cap states do not outperform regulation states; insurer behavior in cap states confirms the disconnect; and the structural cause of the premium cycle — insurer exposure capped by policy limits and the McCarran-Ferguson investment cycle — is not what jury awards drive. The fit failure is at the structural level. Whatever effect the caps have on insurance company payouts, that effect has not translated into savings for healthcare providers.
The healthcare-quality interest: the means cut directly against the end. A regime built on reducing accountability for medical error is the opposite of what the patient-safety literature says is needed. The literature is unusually clear here: when the IOM said in 2000 that the external environment must create sufficient pressure to make errors costly to health care organizations, it identified exactly the mechanism damage caps remove. And the after-the-fact studies of states that did adopt caps in the 2003-05 window find that patient-safety outcomes worsened.
The article does not need to argue that the legislature's goals were improper. They were proper. The point the brief makes is narrower and the literature confirms it cleanly: damage caps are not a rational vehicle for those goals. Under strict scrutiny, that ends the inquiry.
For the brief-writer
A brief opposing an attempt to overrule Nestlehutt — or, in another state, defending against the use of a medical-malpractice damage cap — should:
- Establish the right that triggers strict scrutiny. In Georgia, the jury-trial right under Nestlehutt already does the work; the property-rights argument from the Como brief runs alongside it. In other states, the brief-writer's job is to identify the local fundamental-right hook that pulls the cap out of rational-basis review and into the means-end inquiry where the literature does its work. Cf. Ambles v. State, 259 Ga. 406 (1989), supplies the strict-scrutiny formulation.
- Frame the inquiry as empirical. The legislative findings declared purposes but did not explain the means-to-ends connection. To evaluate the rationale, the court has to look outside the findings. That is what opens the door to the professional literature.
- Lead with the structural point on premiums. A verdict above the policy limit does not cost the insurer more than a verdict at the limit. That single point undercuts the intuitive story the cap relies on and frames the empirical record. The Consumer Watchdog comparison of California pre- and post-Proposition 103 makes the structural point visible.
- Use the four-state Angoff record. California, Pennsylvania, Colorado, and Florida — the Sloan regression analysis, the Hartford withdrawal from Colorado, and Aetna's own admission about its Florida rates — combine to make the empirical case in a compact form a court can absorb.
- Add the AIR 2016 four-decade study. AIR's finding that premium spikes track the insurance investment cycle, not payouts, supplies the structural diagnosis at a level above any one state's experience.
- Use To Err Is Human to anchor the patient-safety section. The IOM's 2000 framing — that the external environment must make errors costly to institutions to drive safety improvements — does the heavy doctrinal work. Damage caps cut directly against that framing.
- Make the management-accountability point explicit. The Joint Commission and Wachter & Gupta both place management at the center of patient safety. Pair the consensus-view passages with the Emory and Piedmont denials in court filings to show that the disincentive problem is not theoretical — sophisticated organizations resist management-level accountability when real stakes are on the table.
- Close with the empirical patient-safety studies. Zabinski & Black's DiD analysis of the 2003-05 cap states, and Currie & MacLeod's birth-outcomes study, confirm that the disincentive effect is not just predictable but observable.
- Connect the literature back to the means-end inquiry. The point of the record is not to argue against caps as policy. It is to defeat the narrow-tailoring step under strict scrutiny by showing that the means do not in fact serve the declared ends.
The empirical record runs alongside the doctrinal arguments — the jury-trial right under Nestlehutt and the property-rights argument from the Como brief — rather than as a substitute for either. A brief that runs the doctrinal argument and the empirical record together gives the court two converging reasons to reach the same conclusion. A brief that runs only the doctrinal argument leaves on the table the literature that does most of the work at the narrow-tailoring step, and concedes the empirical premise on which the cap quietly depends.
