Why do governments intercode in the market

Governments - Intervene in Markets

1) To promote general economic fairness;  to avoid exploitation of the citizens by firms charging exorbitant prices.
2) Maximizing social welfare is one of the most common and best understood reasons.
3) To promote other goals, such as national unity and advancement.
4) Government tries to combat market inequities through regulation, taxation, and subsidies.
5) To minimize the damage caused by naturally occurring economic events.

are few reasons... to help you understand

In edgenuity it's streets and roads.