IMPLIED VOLATILITY IN THE HULL–WHITE MODEL

We study the implied volatility K ↦ I ( K ) in the Hull–White model of option pricing, and obtain asymptotic formulas for this function as the strike price K tends to infinity or zero. We also prove that the function I is convex near zero and concave near infinity, and characterize the behavior of the first two derivatives of this function.     

Co-Creating Value in a Retail Market Setting

It is usually assumed that the co-creation of value requires a close relationship between producers and customers. Typically, this is easier in a business-to-business context, where the numbers of customers and suppliers are relatively low and the capabilities and needs of each partner can readily be assessed. On the other hand, it could be assumed that the co-creation of value in a business-to-consumer context is likely to be more difficult, given the larger numbers of customers and more frequent, short-term, discrete transactions. This article investigates whether it is possible to co-create valuable consumer experiences in a mass market setting by examining the customer relationship strategies of eight Norwegian seafood retailers. The results show that considerable effort from both retailers and consumers are devoted to co-create valuable consumer experiences. We also reveal a repertoire of strategies to engage customers in the co-creation process. Findings are discussed and implications highlighted.     

An innovative approach to risk and quality assessment in the regulation of care services in Scotland

The Scottish Government’s social care regulator, the Care Commission, seeks continual improvement in the quality of social care services. Its approach has been to establish a modern risk-based regulatory regime using separate measures of risk and quality. We evaluate this twin approach, firstly, in relation to the literature on predictors of poor service quality in care delivery; and, secondly, by interviewing a sample of Care Commission inspectors. We conclude that this system has important advantages, both in terms of regulatory transparency and the need for inspectors to remain sensitive to the separateness of risk and quality issues. Future revisions of risk and quality assessment within social care services, both in Scotland and further afield, should seek to minimise misunderstanding and conflict between regulators and regulatees on closely interrelated matters of risk, quality and efficiency.