Hedging in the Possible Presence of Unspanned Stochastic Volatility: Evidence from Swaption Markets

This paper examines whether higher order multifactor models, with state variables linked solely to underlying LIBOR‐swap rates, are by themselves capable of explaining and hedging interest rate derivatives, or whether models explicitly exhibiting features such as unspanned stochastic volatility are necessary. Our research shows that swaptions and even swaption straddles can be well hedged with LIBOR bonds alone. We examine the potential benefits of looking outside the LIBOR market for factors that might impact swaption prices without impacting swap rates, and find them to be minor, indicating that the swaption market is well integrated with the LIBOR‐swap market.     

Performance Evaluation of Audit Assistants in Chartered Accounting Firms

The development of efficient and competent staff in accounting firms is enhanced by the use of formal performance evaluation systems. This paper reports on a study which examined the objectives and uses of performance evaluation, the methods used, the dimensions evaluated, the development of overall assessments, the provision of feedback and the perceived strengths and weaknesses of the systems in use. In general, the performance evaluation process in these firms is effective, but there is scope for improvement in a number of areas.     

Social reporting by islamic banks

The last thirty years have witnessed the appearance and rapid expansion of Islamic banking both inside and outside the Islamic world. Islamic banks provide financial products that do not violate Sharia , the Islamic law of human conduct. The Islamic principles upon which the banks claim to operate give an important role to social issues. Applying these principles, we develop a benchmark set of social disclosures appropriate to Islamic banks. These are then compared, using a disclosure index approach, the actual social disclosures contained in the annual reports of twenty-nine Islamic banks (located in sixteen countries) to this benchmark. In addition, content analysis is undertaken to measure the volume of social disclosures. Our analysis suggests that social reporting by Islamic banks falls significantly short of our expectations. The results of the analysis also suggest that banks required to pay the Islamic religious tax Zakah provide more social disclosures than banks not subject to Zakah .     

Bargaining Strength and Property Class in Office Markets

This paper examines the influence of bargaining power and property class on the prices of heterogeneous goods. Specifically, it explores the impact of buyer and seller characteristics on the transaction prices of office properties. The empirical model is based on the work of Harding, Rosenthal, and Sirmans (2003), which developed a method to distinguish between the impact of buyer and seller attributes on bargaining power and the choice of otherwise unidentified price effects (i.e., property class) in the context of hedonic price models. The data set contains information on transaction prices of office properties in Cook, DuPage, and Lake Counties, Illinois from 1995 to 1997. The results reveal systematic differences in bargaining power and property class for certain groups of buyers and sellers contained within the sample.     

Outsourcing Internal Audit Services: An Empirical Study on Queensland Public-Sector Entities

A study of Queensland public-sector entities suggests outsourcing of internal audit services to be extensive (88%), with 51% of respondent agencies adopting co-sourcing and 37% of the agencies fully outsourcing. Results suggest that internal audit outsourcing is largely adopted for non-financial reasons such as lack of technological know-how and service quality rather than financial reasons. Deficiencies of current governance arrangements concerning internal audit outsourcing include (1) a lack of audit committee involvement in outsourcing processes, particularly in co-sourcing entities, and (2) inadequate segregation of duties whereby the same senior management is involved in key arrangements including selection, approval, negotiation and evaluation of contractual performance.     

An optimization approach to business buyer choice sets: How many suppliers should be included?

In many new or repeat purchasing situations, business buyers must decide how many suppliers to consider (a “choice set”) in determining which supplier(s) to actually buy from or contract with. This paper develops an optimization approach to determining the size of the choice set, taking into consideration buyer utility and search and evaluation costs. A theoretical model is developed for both one-time and repeat purchase situations. The model is estimated using empirical data received from bids received for procurement auctions. In these auctions, suppliers provide bids for steel pipe based on two product attributes (price and delivery time). Model sensitivity to small changes in parameters is also tested.     

Creating compassion: How volunteering websites encourage prosocial behaviour

Organisations increasingly use websites to promote prosocial behaviour such as volunteering, philanthropy, and activism. However, these websites often fail to encourage prosocial behaviours effectively. To address the lack of relevant research, we develop, then refine, a design model that identifies the user experience factors that create intention to engage in prosocial behaviour on websites. We test an initial model developed from the literature, by interviewing forty participants, each of whom visited and compared six volunteering websites. Our analysis of the participants' user experience reveals eighteen elements that interplay to create intention to engage in prosocial behaviour. Our refined design model comprises ten website features (interaction, factual, anecdata, external recognition, organisational expression, value suggestion, explanatory content, visual media, written media and, website design), seven perceptions (ease of use, aesthetics, information quality, trust, negative affect, positive affect, and argument strength), and one motivation (egoism). These findings provide novel insights into how to design Information and Communications Technology (ICT) to encourage prosocial behaviour.