Forecasting critical fractiles of the lead time demand distribution is an important problem for operations managers making newsvendor-type inventory decisions. In this paper, we propose a semi-parametric approach to forecasting the critical fractile when demand is serially correlated. Starting...

Many companies invest in various marketing efforts, such as price promotion and advertising, in order to attract new customers and build customer loyalty. This paper examines the problem of setting efficient inventory levels when new marketing efforts are made and product demand is...

Empirical prediction intervals are constructed based on the distribution of previous out-of-sample forecast errors. Given historical data, a sample of such forecast errors is generated by successively applying a chosen point forecasting model to a sequence of fixed windows of past observations...

In a retail market where market competition is intensifying due to increases in the numbers of outlets, an understanding of patronage-shifting behavior is critical to improving the prediction accuracy of changes in the market shares of existing outlets. Our objective is to understand...

Testing the existence of unit root and|or level change is necessary in order to understand the underlying processes of time series. In many studies carried out so far, the focus was only on a single aspect of unit root and level change, therefore limiting a full assessment of the given problems....

As needs for telecommunications services diversify, an increasingly wide range of services is becoming available in the market. Service price reduction is one strategy used by service providers to retain existing subscribers. A price reduction for one service, however, can affect the...

This paper defines a new concept "bridging telecommunications service" (BTS) in the telecommunication service market. It is a service concept related to the substitution of consecutive generations of telecommunications services. The roles and characteristics of BTS are identified and related...