This paper develops a model for optimal capital investment in continuous time when both existing and new capital stocks are subject to uncertainty. The model is generalized to allow for large and infrequent changes in the dynamics of the capital stock, which may arise as a result of natural and...

This paper studies the arc-routing problem that arises in small-package delivery. In practice, each service provider is encouraged to follow a master route — a predesigned sequence of street addresses — over an extended planning horizon (more than one day). The objective here is to construct...