Legislation and development of world trading system

Question

foreign investment

Answer 1

A "world trading system" is not required. If a country wants to sell, and another wants to buy, it can do so without international law and paperwork - which would just complicate the process.

Suppose you and I are 10 feet away from eachother, but separated by political border. You have oranges you want to sell, and I have money you are accepting to take for those oranges. Why does there need to be 10,000+ pages of law surrounding that transaction?