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In ethical philosophy, utilitarianism is a family of normative ethical theories that prescribe actions that maximize happiness and well-being for the affected individuals. [1] [2] In other words, utilitarian ideas encourage actions that lead to the greatest good for the greatest number.
Two-level utilitarianism is virtually a synthesis of the opposing doctrines of act utilitarianism and rule utilitarianism. Act utilitarianism states that in all cases the morally right action is the one which produces the most well-being, whereas rule utilitarianism states that the morally right action is the one that is in accordance with a ...
Act utilitarianism is a utilitarian theory of ethics that states that a person's act is morally right if and only if it produces the best possible results in that specific situation. Classical utilitarians, including Jeremy Bentham , John Stuart Mill , and Henry Sidgwick , define happiness as pleasure and the absence of pain.
Rule utilitarianism is a form of utilitarianism that says an action is right as it conforms to a rule that leads to the greatest good, or that "the rightness or wrongness of a particular action is a function of the correctness of the rule of which it is an instance". [1]
Preference utilitarianism (also known as preferentialism) is a form of utilitarianism in contemporary philosophy. [1] Unlike value monist forms of utilitarianism, preferentialism values actions that fulfill the most personal interests for the entire circle of people affected by said action.
Lexical threshold" negative utilitarianism says that there is some disutility, for instance some extreme suffering, such that no positive utility can counterbalance it. [22] 'Consent-based' negative utilitarianism is a specification of lexical threshold negative utilitarianism, which specifies where the threshold should be located.
The main problem for total utilitarianism is the "mere addition paradox", which argues that a likely outcome of following total utilitarianism is a future where there is a large number of people with very low utility values. Parfit terms this "the repugnant conclusion", believing it to be intuitively undesirable. [4]
The utilitarian rule is easy to interpret and implement when the functions u i represent some tangible, measurable form of utility. For example: [1]: 44 Consider a problem of allocating wood among builders.