In representative democracies, a mandate is a perceived legitimacy to rule through popular support. Mandates are conveyed through elections, in which voters choose political parties and candidates based on their own policy preferences. The election results are then interpreted to determine which policies are popularly supported. A majority government provides a clear mandate, while plurality or coalition government suggests a lesser mandate, requiring greater compromise between parties. Parties with strong mandates are free to implement their preferred policies with the understanding that they are supported by the people. When no mandate exists for a single party, the median voter may be used to determine what policies have a mandate for implementation. The modern concept of a political mandate first developed around the 16th century and became a prominent aspect of politics after the French Revolution.