Intergovernmental fiscal transfers (IFTs) play a crucial role in addressing vertical and horizontal imbalances, promoting equitable service delivery, and aligning local spending with national priorities across OECD countries. However, their design involves navigating complex trade-offs between...

Subnational governments face a range of fiscal risks, defined as events whose realisation leads to significant deviations of revenue and/or expenditure from budgeted amounts. Fiscal risks reflect unforeseen macroeconomic developments, as well as structural shifts in the economy, including...

With interest rates at their highest levels in two decades, subnational governments (SNGs) are grappling with growing debt sustainability concerns. This paper investigates SNGs’ financing vulnerabilities by examining their debt levels and sensitivity to interest rate fluctuations. It provides...

This paper examines intergovernmental fiscal disputes and co-operation mechanisms across federal and decentralised countries. Employing a case study approach and AI tools, the research analyses constitutional court rulings and their influence on the development of fiscal federalism in seven...

This paper explores the nexus between decarbonisation and intergovernmental fiscal relations, focusing on related challenges and reform options. It highlights the significant role of subnational governments in tackling climate change. Subnational and national governments share responsibilities...

This paper investigates the role of fiscal federalism in driving ecological transition, a key challenge in the United Nations’ Sustainable Development Goals agenda. The ecological transition seeks a sustainable society that prioritises natural resource preservation and reduces environmental...

Less than two years after the start of the COVID-19 pandemic, Russia’s illegal, unprovoked and unjustifiable war of aggression against Ukraine has triggered the biggest military confrontation in Europe since World War II. Many OECD countries have reacted to Russia’s aggression by providing...

This study provides an in-depth examination of the fiscal and governance decentralisation of long-term care (LTC) across OECD countries, offering projections of future fiscal burdens of LTC spending across levels of government. With rapid population ageing and a decrease in the supply of...

The COVID-19 pandemic has had devastating effects on lives, the economy, and the public finances worldwide, drawing attention to the need to enhance resilience to future shocks. This paper focuses on subnational governments, given their important and growing role in the provision of essential...

OECD economies are undergoing a seemingly inevitable process of population ageing that has been changing income and consumption patterns. Notably, the demand for health services is expected to increase, while labour forces are projected to shrink. Both factors are projected to negatively impact...