Answer
The Louisiana Purchase of 1803, in which the United States purchased land from France, doubled the size of the United States and opened up vast new areas for economic development. This expansion of the United States' territory provided new opportunities for businesses to expand their operations, as well as access to new resources and markets. This expansion of the United States' territory also included land with Native American inhabitants and land belonging to Mexico, providing further economic incentives for businesses to expand into these areas.