Scientific Communication, Ethical Argument, and Public Policy

The paper argues that ethical discourse is intimately involved in the research literature of social science, and especially of political science, but is relegated to a subsidiary position. It therefore shares some of the vagueness, flexibility, and potential self-contradiction of the discourse of everyday life, rather than being sharpened by rational criticism. The norms governing scientific discourse provide not only for empirical testing, but also for rational criticism in the formulation of theories; an analogous type of criticism is shared by legal discourse. Some of the norms of scientific communication may be transferred to ethics by the specification of rules for ethical argument, requiring that arguments derive from previously specified, clear and consistent “ethical hypotheses.” Within such rules, ethical systems formulated by social scientists and philosophers may be compared critically. Systems amenable to such comparison include those of welfare economics, cost-benefit analysis, and formal democratic theory. The discourse embodying this argument and criticism is particularly appropriate within the normative tradition of political science. Its possible benefits include clarity about our valuations; communication among disciplines that enlarges the perspectives of each discipline; and a more independent, self-conscious examination within the university of the criteria for policy formation.