Estimates of total factor productivity growth, a measure of increases in the efficiency of production, have traditionally been based on a two-factor model of labor and fixed capital. Because profits are measured residually in the System of National Accounts, they implicitly include rents on...

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...