Grifell-TatjeÌ, E.; Lovell, C. A. K. - School of Economics, University of Queensland - 2015
Recently Diewert (2014) decomposed cost change into the product of four drivers. He then combined three of these drivers with a novel measure of returns to scale to decompose profitability change. We use an implicit Konus input quantity index to show that his expression for profitability change...
