What did adam smith argued in the wealth of nations?

In Wealth of Nations, Adam Smith argued for a market system beyond the mercantilism of the day.

Before Adam Smith, the world thought of the world economy as a fixed pie. Countries would fight for dominance on slices of the pie. As a result, Government controlled much of the market.

Adam Smith came in and argued in Wealth of Nations for a free market wherein individuals would work to further their own interests, allowing the markets to grow.

Check Explanation.

(I support that the expanded powers of the national government benefits policy making).

Explanation:

The United States of America operates a true Federalism. That is the sharing of power between the central government and the states governments. Both the central government which is also known as the federal government have exclusive and concurrent powers.

Over the years the central government/federal government wants have gained a lot of power that they wants to dominate the state government by giving them instructions.

The expanded power of the central government is good for policy making because we will have increasing cooperative federalism and also, it will increase the strength of the Constitution.