1. One party system tends to be more economical to operate. This is because party offices are fewer than in a multi-party system, so also are paid party officials.
2. It is often faster to take decisions in a one party system than in a multi-party system.
3. One party systems tend to provide a single political focus for ideological posture.
4. It fosters unity especially if the single party embraces all the major ethnic groups in the country.