Over the past three decades, public spending on infrastructure, as a share of GDP, has been on the decline worldwide. Although the link between infrastructure investment and economic growth is not yet fully understood, the quality of infrastructure clearly affects a country's productivity,...

Staff Discussion Notes showcase the latest policy-related analysis and research being developed by individual IMF staff and are published to elicit comment and to further debate. These papers are generally brief and written in nontechnical language, and so are aimed at a broad audience...