ENL is a conceptual framework - that is, a set of well-defined concepts and analytical tools. Its purpose is to establish economic objectives that can achieve sustainable well-being. These objectives include the types and quantities of outputs to be produced, the target population level, the optimum degree of labor productivity, and the appropriate mix of local production and trade.
Because this is ENL's exclusive role, it is not a complete economic theory. It must therefore be supplemented by another framework that permits detailed analysis of an economy's operations as the objectives are pursued.