The notable effect of the 19th-century Industrial Revolution on global economies was the shift from agrarian economies to industrialized capitalism. This transition facilitated mass production and consumption, altering trade dynamics and expanding markets. It led to the growth of cities as manufacturing hubs, increased employment opportunities, and the rise of a middle class. Global economies became interconnected as industrialized nations sought resources and markets worldwide, setting the stage for significant economic transformations and globalization in the following centuries.