Adam Smith, he was the first to write on the concept of a free market economy, the basis of Capitalism.
The purpose of a political party is to '
1. To state the position of a party and its goals.
2. They bring people together such that they can be able to control government.
3. They develop favorable policies which are of their interest to themselves and to groups which supports them.
4. Persuade and organize voters to elect their candidate to office.
We need political parties because they are good in reflecting fundamental divisions in the society about different political parties.
So the country doesn't kill itself ......
