System dynamics has been used over a number of years to explore and explain the role Research and Development (R&D) can play in shaping the dynamics of a firm or industry. This paper describes how a dynamic simulation model can be built which broadly characterises and captures the causal...

There is no way to measuring the pay-off of basic research activities and the reasons that lead countries to spend a part of their R&D budget in this field may appear as ideological rather than bearing the stamp of economic common sense. Still, in spite of our time of privatisation,...

There is no way to measuring the pay-off of basic research activities and the reasons that lead countries to spend a part of their R&D budget in this field may appear as ideological rather than bearing the stamp of economic common sense. Still, in spite of our time of privatisation,...

Given an undirected graph with weights associated with its vertices, the minimum weight vertex cover problem seeks a subset of vertices with minimum sum of weights such that each edge of the graph has at least one endpoint belonging to the subset. In this paper, we propose a hybrid approach,...