In one - party system, only one party is allowed to control and run the government. China is its best example.
(i) Strong and Stable Government Since there is no opposition party, government is strong and cannot be removed or voted out of power.
(ii) Less Expensive Since there is only one party and one candidate of the party, not much money is spent on the election.
(i) Undemocratic Government can become dictatorial.
(ii) No Choice It gives no choice to the voters.