In a market economy, why must the government play a primary role in dealing with pollution, vaccinations, and medical research

Explanation:

The government needs to be on top of these situations because each of these factors plays a huge role in the wellness and size of a population. A market economy needs a certain healthy and large population in order to function correctly. The population needs to produce the products and services while at the same time purchasing those products and services from one another in order for the market cycle to function. If such factors as disease and pollution make people sick it will severely cripple the market economy.