The productive efficiencies of traditional and hybrid maize producers in eastern Ethiopia are derived using an efficiency decomposition technique that we extend to account for scale effects. The paper illustrates the sensitivity of the conventional approach to scale effects. The results revealed...

A quasi-input-output framework was employed to measure and compare economy-wide benefits from irrigated crops and cultivated plantations in the Crocodile River catchment. The results of the analysis showed that it makes a huge difference to consider not only direct economic benefits from...