Command and control regulation and legislation
Command and control (regulation + legislation): rules imposed by the government that force consumers or firms to behave in a certain way by law.
Examples
Class A drugs consumption and production is banned in the UK
Petrol and diesel car production is being banned in the UK starting in 2030.
By law, all cars must be fitted with catalytic converters that reduce their emissions.
However can cause;
Lying or parallel markets
Politically unpopular - people like choice