Government regulation is the process of controlling consumption and production activities through laws and administrative rules.
Types of Command and Control Policies:
Standards
Bans
Compulsory Consumption
Direct Provision
Flaws of Command and Control:
Imperfect information
Monitoring and enforcement
Political resistance
Effects on government's budget
In the case whereby MEC is so large that MSC exceeds MSB at all levels of output, it would leave society with a deadweight loss, a b c d. Hence, the only policy to achieve allocative efficiency is a ban to prevent consumption/production.
In the case whereby MEC is not as significant, allowing for socially optimal output to occur at a positive level, imposing a ban would change the deadweight loss from c d e to a e f. The ban is only considered effective if the new deadweight loss is smaller than the previous one.
For the government to impose quotas or maximum production levels (standards), a fine may be imposed.
When making the consumption of a good compulsory, the government has to subsidise or freely provide the good as not everyone has the means to pay the market price for the good.