“Prioritarianism” is an ethical theory that gives extra weight to the well-being of the worse off. Prioritarianism has been much discussed in the philosophical literature over the last thirty years, where it has emerged as an important competitor to utilitarianism. Like utilitarianism,...

"Prioritarianism is a framework for ethical assessment that gives extra weight to the worse off. Unlike utilitarianism, which simply adds up well-being numbers, prioritarianism is sensitive to the distribution of well-being across the population of ethical concern. Prioritarianism in Practice...