Dear Student,
The merits of democracy are
1. It ensures responsible government.
2. It protects the rights of citizens.
3. It prevents the emergence of autocratic government.
The demerits of democracy are
1. It can slow down decision making.
2. The government in a democracy is susceptible to interest groups and lobbyists.
3. The government in a democracy may be focused too much on short run concerns due to the need to attract votes. This can lead to the neglect of long term interests of the country.
Regards.