TRACING PRICE CHANGES THROUGH STAGES OF PRODUCTION: AUSTRALIA, 1968 TO 19771

This study is concerned with an effort to analyze changes in costs and prices in the Australian economy by tracing the effects of changes in wages and import prices through the stages of production, using a disaggregated input-output model with lags. The object of constructing the model was to improve, by introducing lags, the accuracy of predictions of the effect of cost changes on prices, and to show the lag structures. Data problems encountered are discussed, and the need for integration of price statistics to enhance their usefulness for analyses such as this is emphasized. Concepts and sources of data are discussed in some detail in an appendix.     

A management perspective on business ethics

In recent years the institutionalisation of ethics as a means of enhancing the ethical nature of business operations has received widespread empirical coverage. To date, however, few studies have been conducted in the Australian business context. This paper examines the institutionalisation of ethics by a sample of companies based in Perth, Western Australia. In particular, company representatives were asked if their company was institutionalising ethics, why this initiative was undertaken, how this was taking place and what specific issues were being addressed in the institutionalisation process. The results suggest that perceptions of external parties were the primary motivation for ethics institutionalisation efforts although there was also considerable focus on trying to internalise ethical values. In terms of how ethics were being institutionalised the responding companies were more likely to have conducted ethics training programs than to have written Codes of Conduct and in general it appears that few companies were developing comprehensive formal ethics programs. The primary issue covered by these institutionalisation efforts was the observance of laws.Geoffrey Soutar is the Professor and Head of School of Management and Marketing, Curtin Business School. He has an Economics Honours Degree, Master of Arts and a Ph.D.Margaret McNeil is a Senior Lecturer, Curtin Business School. She has an Arts Honours Degree, an Education degree and a Master of Business (Distinction).Caron Molster is a research assistant, Curtin Business School, and has a Bachelor of Business (Honours). She has an interest in business ethics, an area in which she undertook her honours research project.     

Changes in Host Community Reactions to a Special Sporting Event

Special events are a popular component of tourism and economic development strategies for communities and regions in many parts of the world. Researchers continue to develop an understanding of the positive and negative aspects of the events, and to assess residents' support for these events and their views about impacts. The main objective of this paper is to assess residents' reactions over a one-year period to hosting a special sporting event. The analysis is based on three community surveys, one undertaken before the event, the next immediately following the event, and the final one six months later. The research found that support remained high over this period, though a decline in overall support was evident. Over time, views about changes to facilities and services in the community shifted and there were distinct differences in residents' opinions on the impacts of hosting the event. The paper concludes that longitudinal studies must include a time-frame that extends beyond the immediate post-event period and, further, that a comprehensive event hosting impact scale would be useful for research in this field.     

Can Human Capital Theory Explain why Nurses are so Poorly Paid?

This paper uses Australian Census data to examine the earnings of female professionals. Comparisons are made between Registered Nurses (RNs), Teachers, Social Professionals, Health Professionals and Business Professionals. Wage decompositions show that RNs earn significantly less than other female Professionals and that the observed differentials can not be explained by differences in human capital endowments. The evidence presented is strongly suggestive of monopsonist or oligopsonist power in the setting of nurse wages – with a manifestation being persistent labour market disequilibrium. Changing the relative reward structure for nurses may help address the on-going nursing 'shortage' in Australia, although further research in this area is called for.     

Optimal inventories for repairable redundant systems with aging components

Complex systems that are required to perform very reliably are often designed to be “fault-tolerant,” so that they can function even though some component parts have failed. Often fault-tolerance is achieved through redundancy, involving the use of extra components. One prevalent redundant component configuration is the m-out-of-n system, where at least m of n identical and independent components must function for the system to function adequately.Often machines containing m-out-of-n systems are scheduled for periodic overhauls, during which all failed components are replaced, in order to renew the machine's reliability. Periodic overhauls are appropriate when repair of component failures as they occur is impossible or very costly. This will often be the case for machines which are sent on “missions” during which they are unavailable for repair. Examples of such machines include computerized control systems on space vehicles, military and commercial aircraft, and submarines.An interesting inventory problem arises when periodic overhauls are scheduled. How many spare parts should be stocked at the maintenance center in order to meet demands? Complex electronic equipment is rarely scrapped when it fails. Instead, it is sent to a repair shop, from which it eventually returns to the maintenance center to be used as a spare. A Markov model of spares availability at such a maintenance center is developed in this article. Steady-state probabilities are used to determine the initial spares inventory that minimizes total shortage cost and inventory holding cost. The optimal initial spares inventory will depend upon many factors, including the values of m and n, component failure rate, repair rate, time between overhauls, and the shortage and holding costs.In a recent paper, Lawrence and Schaefer [4] determined the optimal maintenance center inventories for fault-tolerant repairable systems. They found optimal maintenance center inventories for machines containing several sets of redundant systems under a budget constraint on total inventory investment. This article extends that work in several important ways. First, we relax the assumption that the parts have constant failure rates. In this model, component failure rates increase as the parts age. Second, we determine the optimal preventive maintenance policy, calculating the optimal age at which a part should be replaced even if it has not failed because the probability of subsequent failure has become unacceptably high. Third, we relax the earlier assumption that component repair times are independent, identically distributed random variables. In this article we allow congestion to develop at the repair shop, making repair times longer when there are many items requiring repair. Fourth, we introduce a more efficient solution method, marginal analysis, as an alternative to dynamic programming, which was used in the earlier paper. Fifth, we modify the model in order to deal with an alternative objective of maximizing the job-completion rate.In this article, the notation and assumptions of the earlier model are reviewed. The requisite changes in the model development and solution in order to extend the model are described. Several illustrative examples are included.     

Sunk costs,contestability and airline monopoly power

This paper examines the effects of sunk costs and potential competition on pricing behavior in monopoly airline markets. We find little evidence to support the proposition from contestable markets theory that the level of sunk costs influences pricing by monopolists. Rather, the results support the view, consistent with numerous game theoretic oligopoly models, that the costs and the price-cutting reputation of potential entrants influence incumbent behavior. These results suggest that contestability theory may not be robust. Even in the markets characterized by increasing returns to scale, the perfectly contestable market may not be a useful welfare standard.I am grateful to Richard Levin, Merton J. Peck, Sharon Oster, Paul MacAvoy, Dan Kaplan, Michael Levine, David Sappington, Andrea Shepard, and Diana Strassman for their advice. Participants at numerous workshops also made useful comments. Steven Davis, Tadas Osmolshis, and Maeve O'Higgins provided help with the data and technical assistance. I acknowledge financial support from Yale University and the Eno Foundation for Transportation. The usual disclaimer, of course, applies.     

In search of sustained competitive advantage: the impact of organizational culture,competitive strategy and human resource management practices on firm performance

We develop and test a dynamic model of co-specialized resources for competitive advantage. Using matched data from senior executives and human resource managers, we test the direct and interactive effects of high-performance human resource (HPHR) practices and organizational culture on firm performance. Although the HPHR practices were not an important influence on performance, our findings indicate that organizational culture can be a valuable resource for companies.