Rule egoism is the doctrine under which an individual evaluates the optimal set of rules based on whether conformity to those rules would bring the most benefit to themselves.
[1] An action, therefore, is right if it promotes one's welfare at least as well as any alternative rule available to them.
[2] It is associated with foundational egoism, which maintains that normative factors must be grounded in consideration of the agent's well-being - something that rule egoism does but in a way that avoids factoral egoism.
[3] Although it is claimed that Thomas Hobbes is a rule-egoist, the term "rule egoism" was first coined by Richard Brandt in his work "Rationality, Egoism, and Morality, where it was briefly mentioned.
[4] This philosophy-related article is a stub.