Figures & data
Figure 2. Conceptual framework, source: Modified from (Kassa, Citation2017).
![Figure 2. Conceptual framework, source: Modified from (Kassa, Citation2017).](/cms/asset/f64fc06d-08a9-46c3-a697-e73e72e489f5/oaef_a_2163543_f0002_oc.jpg)
Table 1. Description of the variables in the model
Table 2. Summary of descriptive statistics
Table 3. Frequency table for technical efficiency
Table 4. Results for stochastic frontier normal /truncated-normal model
Table 5. Elasticity of production and returns to scale (RTS)