No one knows. Trade predates written history.
because it is
Adam Smith's theory was that free trade was similar to an invisible hand that acted like a Natural Selector of businesses and entrepreneurs. If your idea, materials, prices and sale pitch weren't as good as another persons, you would fail.
The safest way to trade commodities is through a broker. He/she will have a better idea of what is safest.
The general idea that international business should not be limited by tariffs or quotas is known as "free trade."
cap
who came up with the idea of NAFTA
The founding fathers came up with the idea of independence. They adopted the idea from the French people during the French Revolution,
The Mac Cosmetics company came up with the idea for MAC powder. It is unclear exactly which employee came up with the idea but it was probably a collaboration between several departments there.
The company Ganz did, but the individual who came up with the idea is not named.
who came up with the ancient olympics
I am pretty sure masashi kishimoto came up with the idea because he did draw them.
gaileau
Teenagers
Not you
Ptolemy
It came up to sell Sticky Tape.
no one actually came up with it but ptolomy came up with the first model of it or you could say aristotle