This paper examines the fiscal and economic implications of Iraq’s current demographic trajectory. We find that, given Iraq’s almost total dependence on oil for government revenues, slight changes in the demographic transition rate could result in significant cumulative per capita expenditure changes- equivalent to $2.9bn, or approximately 7% of the current health budget, 9% of the current defence budget, or 17% of current aid flows. Furthermore, evidence from the entire Middle East and North Africa (MENA) region, suggests that Iraq’s relatively slow demographic transition is reducing per capita economic growth, especially as it is combined with a hostile business environment. Specifically, using a panel dataset, we find that the interactiv...