In this paper we show that in order to aggregate individual efficiency scores into a group (e.g., industry) efficiency score in such a way that the multiplicative structure of further decompositions is preserved with equal weights across components, the weighted geometric mean is required. We...

In this work we develop a framework for statistical testing of significance of contributions to changes in economic growth rates (and productivity changes) in the Solow¡¦s growth accounting framework, which is the main contribution of the paper. We then also illustrate the developed...