Which factor plays the largest role in economic decisions in a market economy?

Business strategies play the largest role in economic decisions in a market economy.

Explanation:

A market economy is an economic system in which most goods are made by producers for consumption by others and distributed through a system of trade. In a market economy where unadulterated competition prevails, the price of a product is determined by supply and demand.

This form of economy can arise from strong specialization and division of labor, which generate such a surplus that distribution of this surplus becomes necessary. In contrast to a subsistence economy, people are only very self-sufficient here.