What economic system uses both free market and command principles?

The economic system that combines both free market and command principles is known as a mixed economy. In a mixed economy, the government and private sector coexist, with the government regulating certain industries and providing public services, while allowing market forces to drive others. This system aims to balance the efficiency of free markets with the social welfare objectives of government intervention. Countries like Sweden and France exemplify mixed economies, utilizing both approaches to address economic challenges.