Estimation of technical efficiency of black cumin (Nigella sativa L.) farming in northwest Ethiopia: a stochastic frontier approach

Journal of Economic Structures

The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)

Table 2 Black cumin yield gap due to technical inefficiency

Variable	Mean	Std. dev.	Min	Max
Actual yield (quintal/0.4 ha)	3.132	2.092	0.800	20.000
TE	0.531	0.212	0.140	0.935
Potential yield (quintal/0.4 ha)	5.832	2.399	2.767	23.625
Yield gap (quintal/0.4 ha)	2.701	1.622	0.519	10.392