Do Conglomerate Firms Allocate Resources Inefficiently Across Industries? Theory and Evidence

We develop a profit-maximizing neoclassical model of optimal firm size and growth across different industries based on differences in industry fundamentals and firm productivity. In the model, a conglomerate discount is consistent with profit maximization. The model predicts how conglomerate firms will allocate resources across divisions over the business cycle and how their responses to industry shocks will differ from those of single-segment firms. Using plant level data, we find that growth and investment of conglomerate and single-segment firms is related to fundamental industry factors and individual segment level productivity. The majority of conglomerate firms exhibit growth across industry segments that is consistent with optimal behavior.     

Asset stocks and flows in macroeconomic theory: Resolving the ambiguities in the general IS-LM model

Summary In this paper we have critically examined the macroeconomic model developed by Benavie as a generalization of the beginning-of-period model of Tobin and of Patinkin's end-of-period approach. We have focused our attention on the ambiguous effects on income of government spending changes and tax changes that result from this model. Our conclusions are twofold. First, with respect to the effects of government spending on equilibrium income, we find that, if the demand function for money is decreasing in the interest rate, then the effect of government spending onY is unambiguously positive for any value of. The ambiguity discovered by Benavie is a result of his implicit assumption that money has the characteristics of a Giffen good. Second, in the case of the tax ambiguity, we find the source of the problem to be in the particular formulation of Benavie's asset demand functions. Benavie specifies his asset demand functions in such a way that tax changes impinge directly on these demands. If both stock and flow demands depend upon gross income and not taxes, then there isno ambiguity with respect to tax changes regardless of the value of. However, if both stock and flow demands depend upon disposable income, and hence taxes, the effect of tax changes on equilibrium income becomes ambiguous, but again independently of the value of.     

“Excellent” systems analysis: The Singapore context

Within the broad context of Singapore's IT2000 Project, an exploratory research project was conducted as part of an on-going program to identify the perceptions of what constitutes the qualities of an excellent systems analyst. A grounded theory approach (theory building) was adopted using Kelly's RepGrid technique to conduct interviews with stakeholders in the systems analyst's performance in a large organization based in Singapore. In reviewing the constructs which emerged from the stakeholder interviews, 12 universal Themes were identified, such as Attitude, Knowledge, Communicate, including a number of sub-Themes. Each stakeholder group had its own interpretation of the relative importance of each Theme. These results have implications for the selection, training and development of systems analysts. Suggestions are made for further research to compare the cross-cultural perceptions of excellent systems analysts, as well as the testing of specific hypotheses derived from the results of this research project.Dr M. Gordon Hunter is with the Faculty of Management, The University of Lethbridge, 4401 University Drive, Lethbridge, Alberta, T1K 3M4 CANADA, tel: (403) 329-2672; fax: (403) 329-2038; e-mail: HUNTMG@CETUS.MNGT.ULETH.CA. Dr John Beck is with the Division of Human Resource and Quality Management, School of Accountancy and Business, Nanyang Technological University, Nanyang Avenue, Singapore 2263.     

An analysis of trade-size clustering and its relation to stealth trading

NYSE and Nasdaq trades increasingly cluster on multiples of 500, 1,000, and 5,000 shares. Such clustering varies over time and across stocks, and tends to increase with the level of trading activity. Furthermore, rounded trades tend to have more persistence both in occurrence and in trade initiation. Finally, medium-sized rounded trades tend to have greater relative price impact than large rounded trades. From these observations we surmise that trade-size clustering is consistent, at least in part, with the actions of stealth traders who tend to use medium-sized rounded transactions in an attempt to disguise their trades.     

The joint determination of audit fees, non-audit fees, and abnormal accruals

Prior research has estimated piece-meal the determinants of audit fees, non-audit fees and abnormal accruals. Intuition, informal analysis, and a variety of theories suggest that audit fees, non-audit fees, and abnormal accruals are jointly determined. We address this endogeneity issue by modeling the confluence of audit fees, fees for non-audit services and abnormal accruals in a system of simultaneous equations. Our joint estimation provides a starting point to look simultaneously at several competing theories. Using audit and non-audit fee data from the UK for 1994–2000, we find evidence consistent with knowledge spillovers (or economies of scope) from auditing to non-audit services and from non-audit services to auditing. While knowledge spillovers from non-audit services to auditing have been found in prior research [e.g. see Simunic, 1984], the presence of knowledge spillovers from auditing to non-audit services is a new result. Contrary to recent results in Ferguson et al. (2000) and Frankel et al. (2002), we do not find support for the assertion that fees for non-audit services increase abnormal accruals. In fact, contrary to the results in Ashbaugh et al. (2003) and Chung and Kallapur (2003), we find that non-audit fees decrease abnormal accruals, which we attribute to the productive effects of non-audit services. We also find evidence that audit fees increase abnormal accruals, consistent with behavioral theories of unconscious influence or bias in the auditor-client relation. The findings are robust to tests with US data. JEL Classification C30 · M40 · M41 · M49     

An algorithmic approach to deriving the minimum-variance zero-beta portfolio

This paper examines the problem of deriving Black's (1972) minimum-variance zero-beta portfolio. Long's (1971) methods, used by Morgan (1975), are briefly mentioned. Then the complementary pivot algorithm of Lemke (1965), which has been shown to be capable of deriving the optimal solution to certain quadratic programming problems that are subject to a non-negativity constraint, is described. Finally, Lemke's algorithm is shown to be capable of deriving the minimum-variance zero-beta portfolio efficiently from samples of risky assets where both long and short positions are allowed by reformulating the problem so as to avoid the difficulties encountered by having a non-negatively constraint.