How much of a say did people in the American colonies have over their trade laws?

Basically, the American colonists had no interference in the trade laws of the Thirteen Colonies, which were determined directly by the British Parliament.

Thus, in economic matters, British laws such as the Navigation Acts prevented the colonies from trading with European nations, establishing a commercial monopoly with Great Britain. This situation collaborated with the progress of British commercialism, at the same time that it limited economic progress for the Americans.

As a consequence of this situation and other political tensions, in 1775 the Thirteen Colonies began their war of independence, declaring their independence as the United States of America a year later.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others