The choice of electoral system is one of the most important institutional decisions for any democracy. In almost all cases the choice of a particular electoral system has a profound effect on the future political life of the country concerned. Electoral systems, once chosen, often remain fairly constant as political interests solidify around and respond to the incentives presented by them. The choices that are made may have consequences that were unforeseen as well as predicted effects. In short, electoral systems are today viewed as one of the most influential of all political institutions, and of crucial importance to broader issues of governance.