Governments are facing growing demands from citizens to deliver high-quality public services. This is happening in the context of limited fiscal space, shrinking official financing, and rising spending needs linked to crisis responses, defense, demographics, and development. With limited room to raise revenues or expand financing, policymakers increasingly need to focus on how to make better use of existing public spending, ensuring that public outlays are efficient, adequate, and sustainable. The seminar will discuss how countries are addressing this challenge in practice, and what lessons can be drawn on how to spend better.