I've thought about this one for a while and I keep coming back to modelling actors with a set of behaviours that influences/triggers other behaviours and variab

I've thought about this one for a while and I keep coming back to modelling actors with a set of behaviours that influences/triggers other behaviours and variable changes (which can then influence other behaviours and variables). This way a government becomes a set of actors whose behaviours include creation of policy, of which are intended to influence the behaviours of all actors in the governing nation, another set of actors of which the serving government is a proper subset. Much like democracy 3, recommended below, it'd form one or more graphs, depending on how far one takes it. My main idea was to simulate an economy independent of current economic models but then simulating government is an integral part of that project.