Online research in philosophy

Many philosophers hold that whether an act is overall morally obligatory is an ‘objective’ matter, many that it is a ‘subjective’ matter, and some that it is both. The idea that it is or can be both may seem to promise a helpful answer to the question ‘What ought I to do when I do not know what I ought to do?’ In this article, three broad views are distinguished regarding what it is that obligation essentially concerns: the maximization of actual value, the maximization of expected value, and the perceived maximization of actual value. The first and third views are rejected; the second view is then refined and defended. The unfortunate upshot is that there may be no very helpful answer to the question just mentioned. As to the question posed in the title of the article, the answer unsurprisingly depends on what ‘objective’ and ‘subjective’ are taken to mean. (Published Online November 24 2006).

It is argued that the acceptance of knowledge in a community depends on several, approximately independent selection "criteria". The objective criteria are distinctiveness, invariance and controllability, the subjective ones are individual utility, coherence, simplicity and novelty, and the intersubjective ones are publicity, expressivity, formality, collective utility, conformity and authority. Science demarcates itself from other forms of knowledge by explicitly controlling for the objective criteria.

Twentieth century philosophers introduced the distinction between “objective rightness” and “subjective rightness” to achieve two primary goals. The first goal is to reduce the paradoxical tension between our judgments of (i) what is best for an agent to do in light of the actual circumstances in which she acts and (ii) what is wisest for her to do in light of her mistaken or uncertain beliefs about her circumstances. The second goal is to provide moral guidance to an agent who may be uncertain about the circumstances in which she acts, and hence is unable to use her standard moral principle directly in deciding what to do. This paper distinguishes two important senses of “moral guidance”; proposes criteria of adequacy for accounts of subjective rightness; canvasses existing definitions for “subjective rightness”; finds them all deficient; and proposes a new and more successful account. It argues that each comprehensive moral theory must include multiple principles of subjective rightness to address the epistemic situations of the full range of moral decision-makers, and shows that accounts of subjective rightness formulated in terms of what it would reasonable for the agent to believe cannot provide that guidance.

In recent years, the notion of a reason has come to occupy a central place in both metaethics and normative theory more broadly. Indeed, many philosophers have come to view reasons as providing the basis of normativity itself . The common conception is that reasons are facts that count in favor of some act or attitude. More recently, philosophers have begun to appreciate a distinction between objective and subjective reasons, where (roughly) objective reasons are determined by the facts, while subjective reasons are determined by one's beliefs. My goal in this paper is to offer a plausible theory of subjective reasons. Although much attention has been focused on theories of objective reasons, very little has been offered in the literature regarding what sort of account of subjective reasons we should adopt; and what has been offered is rather perfunctory, and requires filling-out. Taking what has been said thus far as a starting point, I will consider several putative theories of subjective reasons, offering objections and amendments along the way, will settle on what I take to be a highly plausible account, and will defend that account against objections.

Act-utilitarianism comes in two standard varieties: ‘subjective’ act-utilitarianism, which tells agents to attempt to maximize utility directly, and ‘objective’ act-utilitarianism, which permits agents to use non-utilitarian decision-making procedures. This article argues that objective actutilitarianism is exposed to a dilemma. On one horn of it is the contention that objective act-utilitarianism makes inconsistent claims about the rightness of acts. On the other horn of it is the contention that objective act-utilitarianism collapses back into what is, essentially, subjective act-utilitarianism. Three objective act-utilitarian responses to this dilemma are explored and rejected. The recommended conclusion is that a consistent utilitarian must either embrace subjective act-utilitarianism, or abandon act-utilitarianism altogether. Key Words: act-utilitarianism • subjective • objective • decision-making procedure • criterion of rightness • dilemma.

Two meanings of "subjective consequentialism" are distinguished: conscious deliberation with the aim of producing maximally-good consequences, versus acting in ways that, given one's evidence set and reasoning capabilities, is subjectively most likely to maximize expected consequences. The latter is opposed to "objective consequentialism," which demands that we act in ways that actually produce the best total consequences. Peter Railton's arguments for a version of objective consequentialism confuse the two subjective forms, and are only effective against the first. After reviewing the arguments of Eric Wiland and Frances Howard-Snyder against objective consequentialism, two of Railton's arguments which might seem to count against the second form of subjective consequentialism are shown to be ineffective. This leaves subjective consequentialism as a viable theory to replace objective consequentialism with.

The objective theory of probability of Richard von Mises has been criticized by Crovelli (2009), who defends a subjective approach. This paper attempts to clarify the different meanings of ‘objective’ and ‘subjective’ when applied to probability, and then argues for an objective Bayesian theory of probability, as exemplified in the writings [...].

Many philosophical issues concern questions of objectivity and subjectivity. Of these questions, there are two kinds. The first considers whether something is objective or subjective; the second what it _means_ for something to be objective or subjective.