In this paper, we consider a variant of the Pickup and Delivery Problem (PDP), where any demand may be dropped off elsewhere other than its destination, picked up later by the same or another vehicle, and so on until it has reached its destination. We discuss the complexity of this problem and...

Agriculture confronts several challenges over the decade, i.e., meeting burgeoning food requirements with limited farm land, and balancing the need to import with the provision of livelihoods. The current policy regime leans heavily toward import substitution, with supply side interventions to...

The impact of a stress scenario of default events on the loss distribution of a credit portfolio can be assessed by determining the loss distribution conditional on these events. While it is conceptually easy to estimate loss distributions conditional on default events by means of Monte Carlo...