The aim of this paper is to discuss the use of Bayesian methods in cost-effectiveness analysis (CEA) and the common ground between Bayesian and traditional frequentist approaches. A further aim is to explore the use of the net benefit statistic and its advantages over the incremental...

The stopping rules in sequential methods have posed a lot of difficulties inanalyzing the efficiencies of sequential procedures. The exact distributionsof the stopping points and the statistics related to those stopping rules arehardly available explicitly. Woodroofe (1976), (1977), Lai and...

The classical Black-Scholes analysis determines a unique, continuous, trading strategywhich allows one to hedge a financial option perfectly and leads to a unique pricefor the option. It assumes, however, that there are no transaction costs involved in implementingthis strategy, and the stock...

We propose a class of models in which the η-problem of supersymmetric hybrid inflation is resolved using a Heisenberg symmetry, where the associated modulus field is stabilized and made heavy with the help of the large vacuum energy during inflation without any fine-tuning. The proposed class...

The parameters of a finite mixture model cannot be consistently estimated when the data come from an embedded distribution with fewer components than that being fitted, because the distribution is represented by a subset in the parameter space, and not by a single point. Feng & McCulloch (1996)...

Empirical study of 25 years US Treasury bills data shows that even when the spot interest rate remains fixed, its volatility varies significantly over time. Constant-coefficient models cannot capture these changes as they give rise to time-homogeneous distributions. Maximum likelihood fitting of...

Technological devices such as mobile phones and laptop computers have created an immense demand for efficient and long lasting power sources such as Lithium-ion batteries. Key to improving the current generation of batteries is the understanding of Lithium based materials that are suitable for...

In most classical scheduling models, it is assumed that a job is dispatched to a customer immediately after its processing completes. In many practical situations, however, a set of delivery dates may be fixed before any jobs are processed. This is particularly relevant where delivery is an...

This paper investigates the optimal bidding strategy (supply function) for a generator offering power into a wholesale electricity market. The model has three characteristics: the uncertainties facing the generator are described by a single probability function, namely the market distribution...

In electricity wholesale markets, generators often sign long term contracts with purchasers of power in order to hedge risks. In this paper, we consider a market where demand is uncertain, but can be represented as a function of price together with a random shock. Each generator offers a smooth...