done to improve its production and productivity in Ethiopia. Therefore, this research was designed to examining efficiency … variations and factors influencing technical inefficiency levels of producers on black cumin production in northwest Ethiopia … significant input variables in determining black cumin production. The mean technical efficiency level of black cumin producer was …

In the production sector, where innovation and creativity activities are intensely realized, organizations need not … was conducted with 418 engineers working in the production sector. IBM SPSS 25 program, LISREL program and SOBEL …