New research from the University of Surrey, in collaboration with global partners, challenges the assumption that national wealth directly translates into superior health outcomes. This pioneering study, recently published in the Annals of Operations Research, rigorously evaluates the health progress of 38 OECD countries relative to the United Nations Sustainable Development Goal 3 (SDG 3), which aims to ensure healthy lives and promote well-being for all.
The analysis reveals that some of the world’s richest nations, including behemoths like the United States and Canada, fail to lead when it comes to the efficiency and effectiveness of their health systems. Instead, smaller and less affluent countries such as Iceland, Japan, and Norway demonstrate superior performances by managing resources more strategically and prioritizing equitable, accessible healthcare services. This finding upends traditional perceptions that higher healthcare spending guarantees better population health.
Central to this research is a novel analytical model known as the Joint Variable Selection Directional Distance Function (JVSDDF), co-developed by Surrey researchers. This model evaluates how efficiently countries convert their economic and health-related inputs into tangible health outcomes—metrics such as life expectancy, disease prevention, and access to care are quantitatively assessed, permitting a multidimensional evaluation beyond mere expenditure statistics. The methodology represents a sophisticated convergence of operational research and health economics, applying advanced data-driven techniques for comprehensive international comparisons.
A striking insight from the study is the correlation between integrated public health infrastructure and superior health outcomes per monetary unit spent. Nations employing predominantly public healthcare models characterized by universal access and preventative care outperform those with fragmented systems relying significantly on private sector involvement. This underscores the critical role of strategic system design and policy prioritization over sheer financial inputs.
Professor Ali Emrouznejad, a leading figure behind the study and Chair in Business Analytics at the University of Surrey, emphasizes that “Money isn’t everything when it comes to national health. It’s how effectively countries use their resources that matters.” His perspective highlights an important policy lesson: health budgets, while necessary, are far from sufficient without keen focus on resource allocation efficiency, prevention emphasis, and equitable healthcare accessibility.
The JVSDDF model also incorporates environmental variables, specifically climate-related health risks, which marks a pioneering integration of health economics and environmental policy research. Countries with robust climate health policies consistently rank higher in overall health performance, demonstrating that combating environmental determinants is vital to long-term health system sustainability and effectiveness.
This interlinkage between environmental sustainability and health system performance reflects a paradigm shift in global health research, acknowledging that resilient, adaptive healthcare systems must integrate climate risk mitigation into their core frameworks to maintain and improve population well-being under evolving conditions.
An operational research perspective reveals how the combined data inputs and directional function analysis enable policymakers to identify not only best-performing countries but also to dissect the specific factors driving efficiency gains or losses. The model facilitates granular insights by jointly selecting key variables that influence health outcomes, producing actionable intelligence for governments to optimize their health strategies.
The study’s results advocate for a redistribution of health policy priorities—from expanding budgets to refining system structures, focusing on preventative care, equitable access, and sustainability considerations. Countries exhibiting these features demonstrate measurable advantages in converting resources into improved health indicators, which ultimately aligns with SDG 3 objectives.
Moreover, the research provides a practical roadmap for transforming health systems in resource-constrained environments, offering a blueprint of effective policy practices drawn from nations that maximize performance despite limited financial inputs. This approach champions smarter, not necessarily bigger, investments in health.
By applying methodological rigour and interdisciplinary innovation, the University of Surrey-led team’s work significantly advances understanding of health system efficiency in OECD countries. It challenges entrenched assumptions, highlights critical success factors beyond financial wealth, and offers a replicable model for future research and policy formulation.
Ultimately, this study signals a crucial opportunity for global health policymakers to reconceptualize health as an outcome of strategic resource utilization rather than raw expenditure, embracing prevention, inclusivity, and environmental resilience as pillars of sustainable healthcare systems in the 21st century.
Subject of Research: People
Article Title: Assessing health and well-being (SDG 3) in OECD countries: a joint variable selection directional distance function approach
News Publication Date: 18-Sep-2025
Web References:
- Annals of Operations Research Article
- DOI: 10.1007/s10479-025-06837-9
Keywords:
Health care, Health care delivery, Medical economics, Health care industry, Public policy, Health care policy, Legislation
