We investigate the marginal productivity of investment across countries. The aim is to estimate the return on investments financed by foreign aid and by domestic resource mobilization, using aggregate data. Both returns are expected to vary across countries and time. Consequently we develop a...

Using comprehensive, anonymized tax administrative data for the 2008-14 period, we examine firm-level productivity in South Africa. Measures of firm-level productivity are included in a spatial autoregressive model that assesses spillovers from total factor productivity originating from...

In recent decades, Africa has received a large share of official development assistance compared to other regions of the world. Using AidData for 2000-13, this paper examines the effects of aid to productive sectors on manufacturing growth in Africa. Econometric results show that increased...