In this paper we use the problem of determining the feasibility of system of difference constraints. A difference constraints is of the form x - y ≤ b, where x and y are numeric variables and b is a constant. Systems of difference constraints occur in many economic applications. For example,...

The aim of this paper is to present selected models of a Software Development Life Cycle as a set of possible alternatives. The article also includes the characteristics of IT projects which are used as the basis for selection criteria, according to which an appropriate model should be chosen....

Lehtinen and Kuorikoski ([73]) question, provocatively, whether, in the context of Computing the Perfect Model, economists avoid - even positively abhor - reliance on simulation. We disagree with the mildly qualified affirmative answer given by them, whilst agreeing with some of the issues they...

We present a computational method for finding attractors (ergodic sets of states) of Boolean networks under asynchronous update. The approach is based on a systematic removal of state transitions to render the state transition graph acyclic. In this reduced state transition graph, all attractors...

In this paper we describe how you can implement a multi-agent computational model of trade using NetLogo. We did a number of 12 computer experiments. The first five experiments are dealing with the case when resources are renewable and trade is opened. The next five computer experiments are...

In this paper we develop on a geometric model of social choice among bundles of interdependent elements (objects). Social choice can be seen as a process of search for optima in a complex multi- dimensional space and objects determine a decomposition of such a space into subspaces. We present a...