How was trade important to the economy of the middle colonies?

Trade was important to the economy of the middle colonies. Merchants in Philadelphia and New York City exported colonial goods to markets in Britain and the West Indies. These products included wheat from New York, Pennsylvania, and New Jersey. ... However, colonial laws and customs limited women's economic opportunities.

Explanation:

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.

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