 Normative democratic theory deals with the moral foundations of democracy and democratic institutions, as well as the moral duties of democratic representatives and citizens. It is distinct from descriptive and explanatory democratic theory, which aim to describe and explain how democracy and democratic institutions function. Normative democracy theory aims to provide an account of when and why democracy is morally desirable as well as moral principles for guiding the design of democratic institutions and the actions of citizens and representatives. Of course, normative democratic theory is inherently interdisciplinary and must draw on the results of political science, sociology, psychology, and economics in order to give concrete moral guidance.