Identify the causes and motivations of the the british mercantile system which one is the most significant and why

Mercantile system is the economic system of trade used from the 16th to 18th. According its theory the amount of wealth in the world was static. The British Mercantile system was one of the most famous mercantile system. The motivation was England to to grow in wealth and self-sufficiency, increased political power, increased private wealth. The main motivation however was England to be the first trade power and other countries to be excluded.