The Market Revolution, which unfolded in the United States during the early 19th century, was characterized by rapid advancements in technology and changes in labor systems. One notable aspect of this revolution was the shift from agrarian economies to more industrial and commercial practices. As new transportation systems emerged, such as canals and railroads, regional interdependence increased, altering both the economy and social structures. Which of the following factors was a significant cause of the labor shifts and economic changes experienced during the Market Revolution?