When does government regulate producers in a mixed-market economy?
a. always
b. as needed
c. as required
d. never

I believe the answer is: B. as needed

Mixed-market economy is the combination of both free market system and socialist system. Which mean that both the government and the private sectors are involved in the economy.

In the mixed market economy, the private sectors are free to choose the type of businesses they want to pursue, BUT the government would make intervention once in a while in order to ensure consumers' safety, fair competition, and stability in the market.

this is a good question! i'll do some research and come back when i have the answer!