Many production processes yield both good outputs and undesirable ones (e.g. pollutants). In this paper, we develop a generalization of a stochastic frontier model which is appropriate for such technologies. We discuss efficiency analysis and, in particular, define technical and environmental...

„h Australia¡¦s surge in productivity growth in the 1990s fuelled an acceleration in growth in total income and average income (income per person in Australia). ¡V Annual average income growth accelerated from 1.4 per cent in the 1970s and 1980s to 2.5 per cent in the 1990s. ¡V Faster...