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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.
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 ...
Whereas act utilitarianism requires us to choose our actions by calculating which action will maximize utility and rule utilitarianism requires us to implement rules that will, on the whole, maximize utility, motive utilitarianism "has the utility calculus being used to select motives and dispositions according to their general felicific ...
The felicific calculus could in principle, at least, determine the moral status of any considered act. The algorithm is also known as the utility calculus, the hedonistic calculus and the hedonic calculus. To be included in this calculation are several variables (or vectors), which Bentham called "circumstances". These are:
In ethics, Norcross defends a version of act utilitarianism known as scalar utilitarianism, which is the theory that there are no right or wrong actions, only better or worse actions ranked along a continuum from the action (or actions) that contributes most to overall utility to the action (or actions) that contributes the least.
The utility functions may represent their chance of recovery – () is the probability of agent to recover by getting doses of the medication. The utilitarian rule then allocates the medication in a way that maximizes the expected number of survivors.
Some utilitarian moral theories are concerned with quantities called the "total utility" and "average utility" of collectives, and characterize morality in terms of favoring the utility or happiness of others with disregard for one's own. These notions can be related to, but are distinct from, VNM-utility:
Mill argued that Kant's ethics could not explain why certain actions are wrong without appealing to utilitarianism. [84] As basis for morality, Mill believed that his principle of utility has a stronger intuitive grounding than Kant's reliance on reason, and can better explain why certain actions are right or wrong. [85]