The puzzle of aid and growth: any role for investment?

This paper explores the relationship between aid and growth, through the explicit inclusion of the investment component. We construct a new database, which adds to the previous papers’ variables (policy, institutional quality and civil unrest) some capital accumulation indicators. Partly based on the main literature, a simultaneous equations model is constructed to account for endogeneity and different methods are applied for a robustness check. Although in line with previous literature, in this paper we find that the capital accumulation process is a significant and fundamental channel to understand the link between development assistance and growth. In low-income countries aid effectiveness seems to be significantly lower.