Template-Type: ReDIF-Paper 1.0 Handle: RePEc:ida:wpaper:WP2501 Number: WP2501 Creation-Date: 2025-12-15 Length: 34 pages File-URL: https://repec.ideagov.eu/RePEc/ida/wpaper/WP2501.pdf File-Format: Application/pdf File-Function: First version, 2025 Title: Unfunded Mandates, Institutional Quality, and Social Progress: An Analysis for OECD Countries Abstract: This paper examines the impact of unfunded mandates —defined as the mismatch between political and fiscal decentralisation— on social progress, and how this relationship is contingent upon different levels of institutional quality. Using data from 35 OECD countries over the period 1995–2017 within an Instrumental Variables framework, our results indicate that unfunded mandates are negatively associated to social progress. However, institutional quality plays a crucial role in mitigating these adverse effects. These findings highlight the importance of (i) effective decentralisation design that ensures alignment between its fiscal and political dimensions, and (ii) strengthening institutions to ensure that decentralisation processes positively contribute to national development and social progress. Classification-JEL: C26, H77, I31, O10 Keywords: fiscal decentralisation, political decentralisation, well-being, institutional quality, OECD Author-Name: Miriam Hortas-Rico Author-Name-First: Miriam Author-Name-Last: Hortas-Rico Author-Name: David Martínez-Algora Author-Name-First: David Author-Name-Last: Martinez-Algora