JAMB - Government (2002 - No. 13)
A major consequence of proportional representation is that it
reduces the chances of political instability
favours the development of a two-party system
discourages voting along ethnic lines
encourages the proliferation of parties
Explanation
A major consequence of proportional representation is that it encourages the proliferation of parties, as the possibility of obtaining separate representation is there for each party no matter how small.