While countries around the world scramble to find new revenue streams, it turns out most are sitting on wealth they don't even know they own. The IMF's Fiscal Monitor launched in October, analyses public wealth in 31 countries to find their assets worth $101 trillion or 219 percent of GDP. Dag Detter is a specialist in public commercial assets, and works as an adviser to local and national governments to help make their public assets work for the benefit of their citizens. In this podcast, Detter says countries could easily double the amount of money available for infrastructure if assets were properly managed. Detter is co-author of Unlocking Public Wealth, featured in the March 2018 edition of Finance and Development Magazine.

Dag Detter and Stefan Folster's book The Public Wealth of Nations is published by Palgrave Macmillan.

PHOTO: The city of Boston is one of many cities worldwide to underestimated the value of its public assets. (iStock by Getty images)