From the point of view of the british government, how did the american colonies fit into britain’s imperial trading economy

The American Colonies were an integral, yet increasingly autonomous part of the British Empire and economy. A vast empire, including the colonies plus Canada, parts of the Caribbean, southern Africa, the Middle East, India, and other territories ensured the British freedom of the seas. So a large and productive segment of the British holdings declaring independence would be a jolt on London/

following type of cultural development caused people to want and buy new products on the market :

industrialization