Which economic system became highly developed in the U.S. during Period 6?

The economic system that became highly developed in the U.S. during Period 6 is industrial capitalism. This period, which spans from approximately 1865 to 1898, marked a significant transformation in the American economy characterized by rapid industrialization, urbanization, and the expansion of factory-based production.

Industrial capitalism is defined by the growth of industries, the rise of factory systems, and the investment of capital into businesses aimed at producing goods on a large scale. During this time, railroads expanded significantly, providing critical infrastructure for moving goods and resources, which facilitated trade and commerce across the nation. The development of new technologies, such as the telegraph and later the telephone, further supported industrial growth and communication.

Additionally, this period saw the emergence of large corporations and monopolies, indicating a shift towards a more centralized economic structure, driven by profit maximization and competition. The labor force also transformed, with many workers migrating to cities for jobs in factories, fundamentally changing the American social and economic landscape.

In contrast, mercantilism, feudalism, and socialism represent earlier or alternative economic systems that did not define the American economy during this time. Mercantilism was more relevant to colonial economies and was largely replaced by capitalism; feudal