Answer:
to prevent monopolies and collusion
Explanation:
Remember that market economy is the one in which the production of goods and services are directed by the laws of supply and demand, this means it is conformed by the collective actions of individuals or organizations seeking their own advantage . Therefore, the governmet's role is to ensure fair competition between these individuals or organizations. It makes sure markets are open and work properly by creating laws and encouraging or damping demand. It also penalizes monopolies which limit competition.