The extent to which governments stick to what is included in their parliament-approved budgets is what we refer to as the credibility of their budgets. Budget credibility is an important measure of a government’s own overall credibility and their capacity to deliver on policy promises. In this paper, the authors examine potential drivers of budget deviations using data from 120 Public Expenditure and Financial Accountability (PEFA) assessments conducted in 94 countries. Download the paper.