In what ways did governments try to manage economic markets in the late 19th century?

From the era of Reconstruction to the end of the 19th century, the United States underwent an economic transformation marked by the maturing of the industrial economy, the rapid expansion of big business, the development of large-scale agriculture, and the rise of national labor unions and industrial conflict.

During the late 19th century, changes in industrial production, trade, and imperialism led to a world economy ... The Market Economy in 17th Century Europe.