Answer :
Rockefeller, Carnegie, Morgan, and Ford built transportation, oil, steel, the banking sector, and automotive production, making the US an international power.
This is further explained below.
What is the American economy?
Generally, Rockefeller, Andrew Carnegie, J.P. Morgan, and Henry Ford all became pivotal figures in the development of capitalism.
Their contributions to the transportation, oil, steel, financial industry, and automobile manufacturing industries were instrumental in transforming the world and establishing the United States as a preeminent global power.
The United States of America is a federal republic that consists of fifty states that together encompass a sizable portion of North America. Alaska, located in the continent's far northwest, and Hawaii, which is located in the Pacific Ocean, extend the nation's reach into that ocean.
New York City, a worldwide financial and cultural hub, and Washington, DC, the nation's capital, are both major cities on the Atlantic Coast.
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