EVA as a Productivity Measure.

Until a business returns a profit that is greater than its cost of capital, it does not create wealth, it destroys it.

Measuring total-factor productivity is one of the major challenges confronting the executive in the age of knowledge work. For manual work, measuring quantity is usually sufficient. In knowledge work, we have to manage both quantity and quality, and we do not know yet how to do that. We must try to assess total-factor productivity using the common denominator of revenues and expenses. By measuring the value added over all costs, including the cost of capital, EVA (economic value added analysis) measures, in effect, the productivity of all factors of production [or the true economic costs produced by all resources used].

Never mind...