The authors discuss some shortcomings of probabilistic choice models which do not capture product interdependencies. When substitutional relationships are present in the marketplace, these models may lead to biased estimates for choice/market shares. A probabilistic choice model which accounts...

This article considers the problem of equipment replacement in which the replacement decision at a particular time must take into account (i) the state of the existing machine in use, (ii) the available replacement alternatives at the time, (iii) the future advances in the relevant technologies...