The aim of this paper is to generalize the q-exponential discounting function introduced by Cajueiro (2006) [1] using the hyperbolic function as a base. The presented generalization has two aspects. First, we consider any discounting function F(t), and not just hyperbolic discounting. Second,...

We consider systems of companies which have financial interests in each other and develop principles by which the real interest of one company in another can be determined. The paper develops an algorithm to calculate true interests from a weighted digraph that encodes the direct and indirect...