Abstract:

The classical 2-dimensional game theory can be expanded to a 3-dimensional model, one that does not only consider the decision-makers but also the stakeholders. This Expanded Game Theory (EGT) can be used not only for forecasting of the behaviour of the decision-makers but also highlighting the consequences for the stakeholders, who can use this model for influencing the behaviour of the decision-makers. The EGT does not only serve as a model for economic decisions. It can be applied in many branches like juridical and political contexts. In this article, two completely different possible fields of its use will be highlighted. In this paper, the first application of the EGT will be the derivation of the Queen’s Evidence. This law-concept contradicts the sense of justice of many people, but its benefits for the society can overrule even appropriate criticism. The second application of the EGT will be about constitutional economics. Regarding the protectionist promises of Donald Trump during the electioneering in the “swing states” in 2016 and their consequences, his support of the steel industry is highlighted. The EGT helps in finding solutions which can increase the benefit for all citizens. The EGT shows ways how to overcome protectionism. The EGT is a tool for all involved parties, active decision-makers as well as stakeholders for analysing situations and taking conclusions for achieving a more ethical decision-making process. The new EGT visualizes the side effects of the “players’” decisions. It helps in understanding the view(s) of other(s).