What are the pros and cons of an embargo

The pros of an embargo are usually that the country which has it imposed changes their ways. Since embargos are usually introduced in cases where a nation violates human rights or prevents democracy or similar things, the pros are that the embargo is a motivation for the government that depends on trade to change their ways to become more democratic.

Cons are that they are often ineffective for various reasons. For example, a country may be fully self-sufficient so it doesn't care if it has an embargo since it can fulfill the needs of the people regardless. Another is also if the people are willing to suffer from being in an embargo out of spite for those who introduced the embargo so they don't change their ways.