When is international law usually made?

International law is formed by the mutual consent of nations, given either by international practice or by treaty agreement. Such practices and agreements may involve only two nations (bilateral agreements) or they may extend to many nations (multilateral agreements).

Explanation:

i think it can have both positive and negative effects on businesses.

for example:

lets say you own a small business and taxes go up 4% that means it is going to cost your business more money to buy product to sell. but at the same time you make more money from the tax rise.

that is my theory.