What are role of gov't in a mixed economy

to moderate what happens in the economy, possibly keep the citizens safe by making it illegal to buy or sell certain things, and watch over the economy, in case of an economic downfall.

Role of government in a mixed economy is discussed below.

Explanation:

Besides operating for the development and expansion of the public sector, the state, in a mixed economy, regulates the actions of the private sector by performing several monetary and commercial policies.

government work to defend the public and to protect private enterprise, to support control and command the means of production.