How did rich and poor americans contribute to the creation of a new economy at the end of the 19th century?

please give a detained answer!

They created a new economy by recognizing the issues that the poor people faced in 1890s to 1920. Remember the rich made off money of the poor, after a while when the poor discovered that was happening. Workers went on strike for the such low income and working conditions.

the answer is

possession of power

exercising of power

class and power