Measuring productivity changes in Australian banking: an application of Malmquist indices

Abstract

Gives an overview of the Australian banking industry, reviews relevant research and analyses productivity changes 1995‐1999 in a panel of 17 banks to assess the effects of deregulation and the reforms introduced by the Wallis report (1997). Explains the methodology (Malmquist indices calculated by data envelopment analysis) and presents the results, which show a decline of 3.1 per cent in technical efficiency over the period and of 3.5 per cent in the total factor productivity index, although there was an annual productivity growth rate of 1.3 per cent. Discusses the underlying reasons for this, compares productivity changes in individual banks and finds that size makes no difference. Considers the implications for policy makers, describes the industry as having a “limit of deregulation” syndrome and believes that further productivity gains depend on advances in technology.