Fig. 7From: Measuring countries relative efficiencies in using development assistance: a data envelopment analysis approachMalmquist index summary of annual means for countries income groups (2002–2020). This figure shows the development in the productivity of ODA for according to countries income groups over the period under study in reaching the main SDG goals. Distinguishing between the development in productivity that is attributed to changes in technology (TECHCH) and that due to changes in efficiency; in management (PTECH) and/or in scale efficiency (SECH)Back to article page