I believe the answer is international trade became more important to european economies
Apex
Between the feudal period and the commercial revolution the major change experienced by the European countries was that the International trade became more important to European countries.
The Commercial Revolution marked the creation of a European economy based on trade, which initiated in the 11th century and protracted until it was succeeded by the Industrial Revolution in the mid-18th century. This started with the Crusades by which Europeans rediscovered spices, silks, and other commodities rare in Europe. As a result, a new desire for trade arised.
