What type of economy was america moving towards during the industrial revolution where people primarily produced goods for sales rather than their own consumption and use?

America was moving towards an industrialized, modern, capitalist economy:

Industrialized because industry was becoming more important than agriculture.

Modern because scientific and engineering progress were being applied to industry in order to increase production and efficiency.

Capitalist because people were producing goods for profit, not just for mere survival.

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he sent troops to protect the students as they entered the school.