Explain how the policies of the national government in the late ninete

Explain how the policies of the national government in the late nineteenth century not only aided economic growth in America, but also promoted the consolidation of economic enterprise.

What will be an ideal response?

ANSWER
High tariffs protected American manufacturing. Land grants and low interest loans promoted railroad construction and settlement in the West. Laissez-faire attitudes limited government regulation of the economy, and the Fourteenth Amendment protected corporations from legal restrictions.