The concept of development implies "a gradual evolution towards a higher stage phase, to gain significant scale, increasing evolve",which means, extrapolating from the economy, that development is an open process involving upward trend of economic and social phenomena as a result of action...

Generally, an activity is considered to be efficient if the production implies low costs or if the revenues from selling the products on the market outweigh the expenditures that were made to achieve them. Labor productivity as an efficiency indicator of a production process represents an...