Facing record public debt and mounting spending pressures, OECD countries must look beyond traditional tools to secure fiscal sustainability: it can no longer be achieved without public buy-in. This report highlights that empowering public understanding is now an essential component of modern budgeting. It outlines a strategy based on four pillars.

This case study examines Korea’s use of participatory and collaborative approaches to policymaking through the Open Policy Lab (OPL). The OPL functions both as a platform and a structured methodology, bringing together subject-matter experts, frontline practitioners and other stakeholders to co‑create policies. It focuses particularly on early‑stage policy design under conditions of uncertainty and complexity.

This paper presents a meta-analysis of ex-post empirical evidence on the effects of mitigation policies on emissions. It covers a range of pricing and non-pricing mitigation policies across five broad sectors: agriculture, forestry and other land use, buildings, industry, power and transport. The analysis assesses how policy design attributes and country-specific factors impact estimated policy...

Poor mental health affects more than one in five people across OECD and European Union countries. Focusing on depression and anxiety, this report sets out the strong economic case for investing in better mental health policies. It shows how evidence‑based interventions can improve health outcomes and boost economic growth through improved productivity and labour market...