This study uses techniques from economics to illuminate fundamental questions in ethics, particularly in the foundations of utilitarianism. Topics considered include the nature of teleological ethics, the foundations of decision theory, the value of equality and the moral significance of a person's continuing identity through time.

Contemporary philosophers interested in value theory appear to be largely concerned with questions of the following sort:What is value?What is the meaning of the word ‘good’?Does the attribution of value to an object have a cognitive, or merely an emotive, significance?The first question is metaphysical; to ask it is analogous to asking in physics:What is matter?What is electricity?The others are generally treated as semantical questions; to ask them is analogous to asking in statistics:What is the meaning of the word ‘probable’?Does (...) an attribution of probability express an objective fact, or merely a subjective attitude? (shrink)

Amartya Sen argues that it is not, after all, irrational to reverse preferences when your choices are amplified by an ‘irrelevant’ alternative. He offers examples such as the agent who always picks the next-to-largest piece of cake. Given a choice between a larger and smaller piece, I will prefer the smaller one. But when a third and largest piece in added to my alternatives, I will now prefer the formerly largest piece over the smallest piece. This violates ‘contraction consistency’: a (...) third alternative should not have made any difference in my preferences regarding the first two. Such examples are shown to rely on descriptions which omit features crucial to choice. These features, and all identifying features relevant to my decision, should be included in the descriptions of the alternatives. An adequate description does not smuggle norms into the overt act of choice, but it does include the non-normative characteristics without which my decision-rules, if any, cannot be applied. When alternatives are adequately described, Sen’s inconsistencies disappear. The result is a clearer and more resillent, but also less aggressive notion of behavioral consistency. (shrink)

The money-pump argument is the standard argument for the acyclicity of rational preferences. The argument purports to show that agents with cyclic preferences are in some possible situations forced to act against their preference. In the usual, diachronic version of the money-pump argument, such agents accept a series of trades that leaves them worse off than before. Two stock objections are (i) that one may get the drift and refuse the trades and (ii) that one may adopt a plan to (...) only accept some of the trades. This article argues that these objections are irrelevant. If the diachronic money-pump argument is cogent, so is a more direct synchronic argument. The upshot is that the standard objections to the diachronic money-pump argument do not affect this simpler synchronic argument. Hence the standard objections to the money-pump argument for acyclicity are irrelevant. (shrink)