Name two policies that a Keynesian economist would advocate to influence the level of GDP in the short run

When does an oligopoly market result in a cartel? What conditions must be present for the cartel to be successful?

What will be an ideal response?

An ideal voting system must not have:

A. a person who has the power to single-handedly enact his or her own preferences. B. a person who can convince everyone to vote for his or her preferences, and not their own. C. a one-dimensional issue being voted on. D. transitivity of preferences