What is a primary reason for government intervention in markets experiencing market failure?

A primary reason for government intervention in markets experiencing market failure is to correct situations where the market does not allocate resources efficiently. Market failures can happen when there are externalities, like pollution, where the costs of production affect people who are not involved in the transaction. For example, if a factory pollutes a river, the community suffers from health problems and loss of clean water, but the factory does not pay for these costs. The government can step in by setting regulations or taxes to make the factory responsible for its pollution, ensuring that the company considers the community's well-being. This helps create a fairer market where both producers and consumers are affected positively.