Typical queues do not have constant arrival rates. This paper discusses effective computational methods for dealing with queues having nonstationary arrival processes. It presents a computationally undemanding approximate method for finding the time dependent mean and standard deviation of the...

New product planning models attempt to predict the market consequences of product line and product design decisions. One output of such models, especially those driven by subjective or market research data, is usually theoretical market shares based upon consumer preferences under idealized...