What long term effect did sharecropping have on the economy of the south?

The great compromise during the writing of the constitution involved

As the coach of the u. s. olympic cycling team, i can state without question that the swedish and french teams were using illegal steroids. how else could they have beaten us so badly in the last competition? the u. s. team trained much harder and was much more skilled than our opponents. we only lost because a few teams cheated.

List a few examples of city-states that practiced oligarchy in ancient greece