A new academic study is adding weight to a long-standing belief: advanced degrees can significantly raise earning potential.

Recent findings from researchers at Yale University and Vassar College show that a law degree continues to deliver solid financial returns, placing it among the top-performing professional paths. For families weighing career choices in law or medicine, this data offers a clearer picture of long-term value.

The research reveals a notable jump in earnings for law graduates. On average, individuals earned $55,521 before entering law school. After completing their degree, that figure rose to $132,520. This translates to a 59% increase in earnings, placing law graduates just behind pharmacists and medical doctors in terms of income growth.

Freepik | New research confirms law degrees remain a premier investment for long-term financial growth.

Medical school graduates experienced an even larger rise, with earnings increasing from $48,650 to $181,691, reflecting a 110% gain. Pharmacy graduates also saw a major boost, moving from $49,892 to $132,460, which equals a 114% increase.

In contrast, MBA graduates reported a more modest improvement, with earnings increasing by 16%. These comparisons highlight how field selection plays a major role in financial outcomes after graduation.

What the Data Covers

The study, conducted by Yale economics professor Joseph Altonji and Vassar economics professor Zhengren Zhu, examined earnings data from the early 1990s through 2018. The analysis included 121 advanced degrees and relied on data compiled by the Texas Education Research Center.

Overall, the findings show that holding a graduate degree increases earnings by about 17% on average. However, the return varies widely depending on the field of study. For example, clinical psychology degrees delivered only a 4% increase in earnings, showing that not all advanced degrees offer the same financial value.

The researchers emphasized the importance of clear financial data in education decisions. According to the study, “It is critical to provide students and policymakers with reliable quantitative measures for programs’ financial value.”

Adjusted Returns Tell a Different Story

While raw salary growth looks promising, the study also factored in the cost of earning each degree and the time required to complete it. Once adjusted for these elements, the financial return of a law degree drops to a 41% increase in earnings.

Even with this adjustment, law degrees still rank third in terms of returns. Medical degrees lead with a 173% increase, while pharmacy programs follow at 68%.

Freepik | Law students' limited earning potential during school results in lower cost-adjusted returns than other graduate paths.

One factor affecting law students is reduced income during their years in school. Compared to students in some other advanced programs, law students often earn less while studying. This lowers what researchers describe as “cost-adjusted returns.”

The study also points to the impact of institutional ranking on career outcomes. Graduates from higher-ranked MBA and J.D. programs tend to see stronger financial returns than those from lower-ranked schools.

This finding aligns with employment data from the American Bar Association. Graduates from top-ranked law schools are more likely to secure associate roles at large law firms. These positions often come with starting salaries around $225,000, which significantly boosts early career earnings.

Long-Term Value of Professional Degrees

The results of this study match earlier research on the financial benefits of advanced education. A 2024 report from the Education Data Initiative found that professional degrees can generate a return on investment as high as 2,249% over a 40-year career span.

This reinforces the idea that while upfront costs may be high, the long-term financial payoff can be substantial—especially in fields like law, medicine, and pharmacy.

The latest research offers a detailed look at how a law degree performs financially over time. While costs and time commitments reduce the overall return, the earning potential remains strong compared to many other fields.

Income growth, job placement opportunities, and the influence of school ranking all shape the final outcome. For students considering advanced education, these findings provide a clear, data-backed view of what a law degree can deliver.