Final answer:
During the era of the robber barons, new ways of organizing businesses emerged through the use of new technologies and the formation of enormous corporations.
Step-by-step explanation:
During the era of the robber barons, new ways of organizing business emerged. These business entrepreneurs took advantage of new technologies like steel refining, communications, and electricity to revolutionize American industry. They formed enormous corporations that could monopolize entire industries and control all aspects of the production cycle. These businessmen, such as the Rockefellers and Vanderbilts, amassed huge fortunes and used their influence in business to control aspects of government as well.