The concept of independent traders and a merchant class uncontrolled by a central palace system of government really didn’t emerge until after the Late Bronze Age collapse circa 1170’s BCE. Before that, it was all about central control through the sovereigns, their (hugely extended) families, a system of “gift exchanges” that look a lot like commerce to us today, and control through priesthoods. It just wasn’t an option to get up and be a merchant on an international scale without your god-king giving you the rights at that time.