This paper explores when it is important for firms to consider stockout-based substitution and competitor's inventory levels in making inventory decisions in the context of a duopoly model. To address this question, we consider a model where two newsvendors sell substitutable products in a...

In this paper, we examine the nature of optimal inventory policies in a system where a retailer manages substitutable products. We first consider a system with two products 1 and 2 whose total demand is D and individual demands are negatively correlated. A fixed proportion of the unsatisfied...

Behavioral studies have consistently reported the pull-to-center (PTC) effect observed in laboratory studies of the newsvendor problem. We examine whether this and some other observed effects can be reconciled under the general framework of prospect theory without special assumption on reference...