How did the War of 1812 most affect the U. S. economy?

During the War of 1812, the American economy went through many changes. ... This lack of international trade caused the Americans to begin manufacturing everything that they needed. Decaying, centuries-old factories in the United States were restored and reused, while new factories were being built.

Explanation:

the explanation for your answer.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.