Grifell-Tatjé, Emili; Lovell, C. A. Knox - Barcelona Graduate School of Economics (Barcelona GSE) - 2005
1971 reorganization. We investigate the economic sources of productivity change, (technical change, change in cost … efficiency, and scale economies), and the distribution of the financial benefits of productivity change (consumers of postal … been the main driver of, and diseconomies of scale to have been the main drag on, productivity change. We find labor to …