A Monte Carlo investigation of the accuracy of multivariate CAPM tests

In a multivariate regression model relating individual returns to the market return, CAPM implies non-linear restrictions on the parameters. Several asymptotically valid tests of these restrictions have been suggested. The existing Monte Carlo evidence shows that some of these tests are unreliable for reasonable sample sizes, but does not indicate well which tests are reliable. This paper reports the results of an extensive Monte Carlo experiment. Shanken's CSR test and Jobson and Korkie's corrected likelihood ratio test are quite accurate in all cases we consider.     

Evolution of global airline strategic alliance and consolidation in the twenty-first century

Global airline strategic alliances have emerged since the late 1980s, and their number has slowly risen through the years. Will the number of such alliances continue to proliferate? Or will airlines consolidate with one another to form mega-carriers? In this paper, the likelihood of various airline consolidation and alliance development possibilities was examined based on a number of high-level trends and forces. The most probable near-term industry alliance and consolidation structure is described, accompanied with a probable path of evolution. These predictions have important implications for managers of strategic alliances, carriers who are currently in an alliance as well as carriers who are planning to join one.     

Capital management in mutual financial institutions

Capital management by mutual financial institutions (such as credit unions) provides a valuable testing ground for assessing the impact of capital regulation and theories of managerial behaviour in financial institutions. Limited access to external equity capital means that capital accumulation must be met primarily by reliance on retained earnings. To deal with shocks to the capital position and avoid breaching regulatory requirements, managers will aim to have a buffer of capital in excess of the regulatory minimum. Moreover, mutual governance arrangements and an absence of capital market discipline mean that managers have discretion to set target capital ratios which differ significantly from industry averages. This paper develops a formal model of capital management and risk management in mutual financial institutions such as credit unions which reflects these industry characteristics. The model is tested using data from larger credit unions in Australia, which have been subject to the Basel Accord Risk Weighted Capital Requirements since 1993. The data supports the hypothesis that credit unions manage their capital position by setting a short term target profit rate (return on assets) which is positively related to asset growth and which is aimed at gradually removing discrepancies between the actual and desired capital ratio. Desired capital ratios vary significantly across credit unions. There is little evidence of short run adjustments to the risk of the asset portfolio to achieve a desired capital position.     

Gender and ethnic differences in factors that influence food intake

Abstract The objective of this research was to ascertain the gender-and ethnic-related factors that influence what one eats. This survey was conducted using a validated, pilot-tested questionnaire in 11 states and the District of Columbia, which were participating in the W-182 Western Regional Research project. The results indicated that the factors that influence what one eats differ by gender and ethnicity. Men were very much influenced by likes and dislikes, and by their spouse or significant other. Women were influenced by likes and dislikes, and health. Food likes/dislikes and concerns about health and weight were among the leading four factors for all ethnic groups. Food likes/dislikes were the top factor influencing what is eaten by 51% or more of Asians, Pacific Islanders, Caucasians and Hispanics. Concern about health was the top factor for 62% and 58%, respectively, of African Americans and Native Americans.     

Reflections on longitudinal action research with the English National Health Service

This paper reflects on a longitudinal collaborative action research programme between the Centre for Research in Strategic Purchasing and Supply and the UK National Health Service Purchasing and Supply Agency that has operated since 1995. During the collaboration, research has changed practice and practice has changed research. A framework for analysing change is introduced as a means of examining how supply strategy has changed during the course of the research. The framework is applied to three supply strategy cases of prosthetics, clinical waste and cardiology, illustrating how practice and research have changed and influenced the production of knowledge over time. The methodological, theoretical and managerial implications of such longitudinal action research programmes are reflected on.     

What are the implications of the new UK age discrimination legislation for research and practice?

Forthcoming changing demographics and the introduction of the relatively recent UK age discrimination legislation make it timely to consider some of the debates around the relevance of age to work. Issues surrounding ageing have been considered from within a number of disciplines and research perspectives which have led to some questioning of the dominant economic model that pivots on chronological age as a convenient, bureaucratic, measure that proxies for ability. The role of the HR practitioner in being able to redefine expectations throughout the lifespan of employees is considered while constraints to managing for the longer term are acknowledged. It is proposed that although the legislation will affect some age‐related practices positively, there are likely to be unintended consequences that single out particular age groups as special cases and therefore make age more relevant to the work relationship.     

Investing Volatile Resource Revenues in Capital‐Scarce Economies

Natural resource revenues are an important financing source for public investment in many developing economies. Investing volatile resource revenues, however, may subject an economy to macroeconomic instability. This paper studies fiscal approaches to investing resource revenues, using Angola as an example. With spend‐as‐you‐go, resource revenues are spent as received, resulting in little external saving; public investment can be interrupted, driving up the capital depreciation rate and undermining stability. Gradual scaling‐up, instead, allows countries to build up external saving to shield investment from revenue volatility. The framework adopted here can be used as a planning tool to define a medium‐term fiscal strategy.     

The Dividend Substitution Hypothesis: Australian Evidence

In a perfect capital market firms are indifferent to either dividends or repurchases as payout mechanisms, suggesting that the two payout methods should be perfect substitutes. Empirical research at the single country level, as well as cross country studies, provide evidence that dividends and repurchases act as substitutes (the dividend substitution hypothesis), and that the tax treatment of dividends versus capital gains affects this relation. Australia, which operates under a full dividend imputation system, has two types of repurchases: on‐ and off‐market. On‐market repurchases are taxed as capital gains while off‐market repurchases comprise a large dividend component carrying valuable tax credits. Australia thus provides a natural setting to investigate how the tax treatment of proceeds affects the dividend substitution hypothesis. Dividend substitution is found to exist for on‐market repurchases but not for off‐market repurchases, thus providing further support for the idea that the tax treatment of proceeds affects the substitutability of repurchases and dividends.