Answer:
During the 1920s and 1930s, most ideas about "being modern" acknowledged that modernity implied mass production and consumption. This was a time of great technological advancement and the rise of industrialization, and many believed that the key to progress and prosperity lay in the efficient production and distribution of goods. This emphasis on mass production and consumption was reflected not only in economic policies and practices, but also in the cultural trends of the time, including the emergence of consumer culture and the popularity of modernist art and design. While there were certainly other important aspects of modernity during this period, such as stylistic innovation and realism in art, the emphasis on mass production and consumption was a defining characteristic of the era.