Marcello is a health and social care economist whose research centres on the rigorous evaluation of policies. His work focuses on understanding the organization, delivery, and integration of health services, with a specific emphasis on assessing their public costs, efficiency, and equity implications – including how benefits and burdens are distributed across (sub-)populations. He also examines the personal economic costs linked to disability in later life.

To provide robust evidence for policymakers, Marcello employs advanced quantitative methods, particularly causal inference and sophisticated microsimulation tools (both static and dynamic), which allow the analysis of the complex effects of interventions on individuals and care systems.

A defining feature of his career is a strong commitment to policy relevance and impact. He actively collaborates with national and international policymakers, translating his research findings into actionable insights. This engagement is driven by his overarching goal: to improve the quality of life for individuals and effectively reduce both horizontal (unfair differences among equals) and vertical (unfair differences between unequals) inequalities in health and social care access and outcomes and to promote equitable and sustainable systems in more inclusive societies.