The debate regarding the determinants of persistent abnormal profits is re-examined using a new approach to the measurement of profits which explicitly accounts for intangible capital. Abnormal profits are estimated using data on tangible and intangible capital for 2800 Australian firms over a...

The effects of innovation on firm performance is conventionally analysed using R&D or patent applications as measures for innovation capital and market value as the measure of firm performance. We argue that such studies fall short in three important respects. First, the proxies used for...