What economic system is in most direct opposition to the laissez faire policy?

The economic system that is in most direct opposition to laissez-faire policy is socialism. While laissez-faire promotes minimal government intervention in the economy, allowing free markets to operate independently, socialism advocates for significant government control and regulation of economic activities, often emphasizing collective ownership of resources and wealth redistribution. This fundamental difference in the role of government in economic matters highlights the contrasting ideologies of these two systems.