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....

This book contends that the East Asian financial constitution lacks an appropriate infrastructure, resulting in inefficient allocation of high savings and an over-inflated short-term debt market. It goes on to point out that despite high savings, East Asia’s dependency on financial...

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...

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...