This paper provides a Keynesian model that is closer to the key ideas of The General Theory compared to contemporary models, which are very limited versions of The General Theory that ignore true uncertainty and 'views about the future', which have significant implication for the determination...

This paper argues that the mainstream lack of realism comes from its reduced definition of uncertainty. By contrast, the fundamental uncertainty is shown to be the reason why the notion of an optimum is deprived of objective foundation and therefore rational decisions cannot discard the...