The British Atlantic Empire operated through a regulated commercial system that connected Britain, West Africa, the Caribbean and mainland North America. The Navigation Acts favoured British ships, ports and merchants, while colonial producers supplied tobacco, sugar, rice, indigo, timber and other commodities. This system supported naval power and colonial growth, but it also depended heavily on enslaved labour, commercial coercion and laws that merchants regularly evaded.
Religious migration created durable settlements in New England, but those colonies remained part of a wider imperial economy. Their merchants, ships and farms traded with Britain, the Caribbean and other colonies under rules designed at Westminster.
What was mercantilism?
Mercantilism describes a broad collection of early modern policies rather than one perfectly coherent economic theory. European governments attempted to strengthen the state by protecting shipping, directing trade, developing strategic industries and securing access to valuable colonial commodities.
Political leaders did not measure national wealth through modern economic statistics. They often focused on customs revenue, precious metals, shipping capacity, commercial balances and the ability to finance war. Trade mattered because it supplied both wealth and military power.
Colonies occupied a central place within this system. They supplied commodities that Britain could not produce domestically, while creating markets for British manufactured goods. Imperial legislation attempted to keep the greatest possible share of shipping, processing and commercial profit within British control.
However, the colonies did not exist merely as passive economic units. Colonial assemblies, planters, merchants, shipowners and Indigenous trading partners pursued their own interests. Their choices repeatedly altered or undermined policies designed in London.