Outlines previous research on the security analyst “superstar” phenomenon, including the stochastic model of Yule and Simon. Applies this to data on the 1986‐1997 selections for the Institutional Investor’s All‐British Research First Team (ABRT) and finds that it does not explain the...

Reviews previous research on the nature of beta and investigates the stochastic structure of time‐varying beta in Hong Kong, Malaysia and Singapore using the bi‐variate GARCH‐in‐mean model and fractional tests. Develops mathematical models and applies them to 1989‐1998 daily data from...

Cash flow management is a significant issue in the management of a building or construction firm. This paper steps back from the well researched area of poor cash management and its relationship with failure, to focus on the funds which are generated through operations, and the positive benefits...

Maintaining efficiency in despatching goods from a depot to geographically dispersed customers may require management at the depot to adjust its delivery routes daily if these customers’ demands fluctuate from day to day. One type of adjustment is to give drivers daily “skip lists”...

Derives expressions for performance availability and performance reliability of fault tolerant systems operating under various levels of stress during a mission using stochastic reward models (SRM). Develops a mathematical model using semi‐regenerative reward model. Obtains a system of...

In stochastic inventory management, when calculating the safety stock necessary to ensure a service level, use of the partial expectation function, which is tabulated in the normal demand case, is popular. Using these values, it is possible to calculate the safety stock necessary for the average...

Analyses the economic efficiency of innovation under different market conditions within the context of a formal model that represents competitive innovation as the closed loop solution of a dynamic stochastic game in the spirit of Reinganum’s analysis. Goes beyond Reingnaum’s model in its...

Considers manufacturing systems with a failure‐prone machine and a stochastic demand. The production is controlled by a kanban scheme. Although the kanban ‐control enjoys many applications, in a stochastic setting, the problem of defining the optimal number of circulating kanban s remains...

Analyses a split production system which has a single station in the first stage followed by two parallel stations in the second stage, in connection with the efficiency of the system. Develops a mathematical model using semi‐regenerative processes to study the transient behaviour of the...