Especially but not exclusively in the United States, there is a significant gulf between expert opinion and public opinion on a range of important political, social, and scientific issues. Large numbers of lay people hold views contrary to the expert consensus on topics such as climate change, vaccines, and economics. Much political commentary assumes that ordinary people should defer to experts more than they do, and this view is certainly lent force by the literally deadly effects of many denials of (...) established science. But there are complex philosophical issues here, concerning, among other things, (i) what an expert is; (ii) what kind of deference is called for; (iii) and when deference is called for. This entry gives an overview of these three issues and recent work on them. It then examines some potential collective and pragmatic disadvantages of deference, before concluding with reflections on what we can say to those who distrust experts. (shrink)

Political legitimacy is a virtue of political institutions and of the decisions—about laws, policies, and candidates for political office—made within them. This entry will survey the main answers that have been given to the following questions. First, how should legitimacy be defined? Is it primarily a descriptive or a normative concept? If legitimacy is understood normatively, what does it entail? Some associate legitimacy with the justification of coercive power and with the creation of political authority. Others associate it with the (...) justification, or at least the sanctioning, of existing political authority. Authority stands for a right to rule—a right to issue commands and, possibly, to enforce these commands using coercive power. An additional question is whether legitimate political authority is understood to entail political obligations or not. Most people probably think it does. But some think that the moral obligation to obey political authority can be separated from an account of legitimate authority, or at least that such obligations arise only if further conditions hold. (shrink)

A great many important decisions we make in life depend on scientific information that we are not in a position to assess. So it seems we must defer to experts. By now there are a variety of criteria on offer by which non-experts can judge the trustworthiness of a scientist responsible for producing or promulgating this information. But science is, for the most part, a collective not an individual enterprise. This paper explores which of the criteria for judging the trustworthiness (...) of individual scientists can be amended for use in assessing the trustworthiness of scientific collectives. It also offers some new proposals specifically geared to assessing collective trustworthiness in science, notably, an analysis of where to apply the criteria (for example at the group or individual level) and additional criteria to assess group infrastructure and design. The paper ends with some practical suggestions for how to assist the non-expert in this task. (shrink)