Differences between the us and other western democracie

•What are some fundamental differences between the US and other Western democracies? (e.g., in what ways is a Parliamentary system different from a Presidential system? )

• What are the different definitions of democracy? How do they differ from each other?
• What are the arguments in favor of representative democracy over direct democracy?

•What are the differences between Liberalism, Conservatism, Libertarianism, and Communitarianism (populism)? Explain how each of these differ in terms of their attachment to the values of freedom, order, and equality.
•Explain the basic differences between the majoritarian versus pluralist models of democracy.