Socialism:

You have two cows. Give one cow to your neighbor.

Communism:

You have two cows. Give both cows to the government, and they may give you some milk.

Fascism:

You have two cows. You give all of the milk to the government, and the government sells it.

Nazism:

You have two cows. The government shoots you and takes both cows.

Anarchism:

You have two cows. Keep both cows, shoot the government agent and steal another cow.

Capitalism:

You have two cows. Sell one, buy a bull.