NC has a relatively short but interesting post up, called Economics is Applied Morality:
Utilitarianism is the moral foundation of economics. The idea of the greatest good for the greatest number is intuitively appealing. But applying a utilitarian framework relies on value judgments about the desires, and a comparable measure of their intensity, of every individual. Some of the defining debates in economics over the past century have centred around the measurement and comparability of utility between individuals.
Thus any application of economics requiring estimation of costs or benefits is applying a judgment about the worthiness of competing desires of the population at large. That judgment is necessarily a moral one.
Other times economic analysis is more clearly a case of applied morality. In analysis of public health economists usually appeal explicitly to the idea of utils, or some metric of quality-adjusted life years. The adoption of this metric relies on a moral judgement, for it implies that the elderly are less deserving of health resources than the young. But an equally valid moral position is that the elderly are more deserving as a repayment for their lifetime of work contributed to the community. Another moral position is that the young are easily and cheaply replaced, while the wisdom held in those elderly bodies has a high value and is costly to replace.
Read the entire thing!