eudaemonist: eu·dae·mon·ism also eu·dai·mon·ism or eu·de·mon·ism (y-dm-nzm) n. A system of ethics that evaluates actions in terms of their capacity to produce happiness.
I always thought the only word for this was utilitarianism. Good that eudaemonism has a word too, because the utilitarianist notion of utility (though closely bound, at least in Bentham, to happiness), is often something quite different from happiness. This is also linked to those who identify utilitarianism with instrumental reason and inhuman modernism.
The Bhutanese national economy is based on eudaemonist principles. They call it "Gross National Happiness".