Software project escalation has been shown to be a widespread phenomenon. With few exceptions, prior research has portrayed escalation as an irrational decision-making process whereby additional resources are plowed into a failing project. In this article, we examine the possibility that in some cases managers escalate their commitment not because they are acting irrationally, but rather as a r...

The trend for businesses to outsource information technology (IT) resources remains a relevant topic among IS researchers (Hirschheim and Lacity 2000, Kern & Blois 2002, Yost & Harmon 2002, Dibbern et al. 2004). While much has been written about outsourcing, the literature is relatively sparse when contemplating the issue of how organizations actually make their IT sourcing decisions. These sou...

In this paper we shall represent strategic planning problems by dynamic decison trees, in which the nodes are projects that can be deferred or postponed for a certain period of time. Using the theory of real options we shall identify the optimal path of the tree, i.e. the path with the biggest real option value in the end of the planning period.

we give further results for perron-frobenius theory on the numericalrange of real matrices and some other results generalized from nonnegative matricesto real matrices. we indicate two techniques for establishing the main theorem ofperron and frobenius on the numerical range. in the rst method, we use acorresponding version of wielandt's lemma. the second technique involves graphtheory.