Default risk and equity returns: Australian evidence

We test whether default risk is related to equity returns using the Fama and MacBeth [Fama, E.F., MacBeth, J., 1973. Risk, return, and equilibrium: empirical tests. Journal of Political Economy 81, 607–636.] regression framework. The proxy we use for default risk is the default probability obtained from option-based models. Our findings show that default probability is negatively related to returns. While we find that size and book-to-market are related to default risk, the ability of these variables to explain cross-sectional variation in returns is not because they are proxying default risk. Further, our evidence suggests that the negative relationship between default probability and returns is not due to a leverage, volatility or momentum effect.     

Nonlinear regression and curved exponential families. Improvement of the approximation to the asymptotic distribution

Inference in nonlinear models is usually based on the asymptotic normal distribution, based on linearizing the model. The accuracy of this approximation can in many cases be improved by a reparametrization. Systematic methods for doing this will be described. Sometimes a saddlepoint approximation can be used, and this offers several advantages compared to the asymptotic distribution and the Edgeworth expansion. The improved methods are unfortunately not commonly used. It will be discussed why this is so. The methods will be illustrated by a series of examples.     

The Dynamics of SME Information Systems

The process by which small firms (SMEs) invest in and gain benefit from information systems (IS) is little understood. This paper analyses two alternative models of IS-based strategic change – the Focus-Dominance model (Levy et al., 2001) and stages of growth models as applied to SMEs. An analysis of the outcomes of IS strategy development undertaken for 43 SMEs maps their IS use over time. The analysis supports the Focus-Dominance model, some parts of the stages of growth model and extends the critique of the latter. Further variances are explained by the entrepreneur/owner's values and experience. One structural variable, namely, the industry sector may also explain the variances. The implications for theory and practice are discussed.     

Welfare indicators for public facility investments in urban renewal areas

To evaluate the effects of alternative public investment policies in terms of the welfare status of human beings thereby affected, we must have a clear delineation of social, economic, or other roles that such investment is intended to play. This paper defines a role for public facility investment in urban renewal areas that is based on analysis of both the intrinsic characteristics of these investments and the policy environment—defined by a set of renewal objectives—in which they are made. Benefits and costs are seen to accrue to society—individuals, households, business, or the community-at-large—from appropriately defined categories of public facility investment impact. A set of welfare indicators, comprised of benefit-cost measurements related to the categories of investment impact, emerges from our analysis to provide a basis for re-evaluation of certain aspects of renewal policy.     

A reexamination of the Internal Auditors' Code of Ethics

This study empirically examined the views of Certified Internal Auditors (CIAs) concerning the role of Code of Ethics for members of the Institute of Internal Auditors. It is a continuation of an earlier study which examined the usefulness of the Code to CIAs. Among the questions asked were what is the primary reason for the Code of Ethics, how useful is it, have you used it, should more enforcement actions be taken against members who violate the Code, and what are the legal and moral responsibilities of the CIA to report serious ethical violations, e.g., environmental pollution, to outsiders when top management and the board of directors are aware of the matter but are not doing anything to correct it. The results indicate strong support for the Code, its enforcement, and use as an instrument to encourage the internal flow of ethical behavior by embers and others.Philip H. Siegel is currently the Fiesta Mart Professor of Accounting at the University of Houston-Downtown. Formerly the Coopers & Lybrand Professor at San Francisco State University, Dr. Siegel received his Ph.D. in 1985. He holds CPA certification in Florida.John O'Shaughnessy is Associate Professor at San Francisco State University. Currently the Director of the Internal Audit Program at SFSU, Dr. O'Shaughnessy received his Ph.D. in 1990. He holds CPA and CIA certification.John T. Rigsby is Associate Professor at Mississippi State University. Author of numerous papers published in leading academic journals, Dr. Rigsby received his Ph.D. in 1986. He holds CPA certification.