Why might public expenditure fall if the economy comes to rely more on the market system?

Public expenditure may fall as the economy relies more on the market system because increased market efficiency can lead to higher levels of private sector investment and consumption, reducing the need for government intervention. Additionally, a thriving market can generate higher tax revenues, allowing governments to allocate fewer resources to welfare programs and public services. This shift can also reflect a belief in privatization, where services traditionally provided by the state are increasingly managed by private entities. Ultimately, as the market becomes more self-sustaining, the perceived role of government in economic management diminishes.