What contributed to American consumer spending during 1920?

American consumer spending in 1920 was significantly influenced by the post-World War I economic boom, which led to increased disposable income and a desire for consumer goods. The expansion of credit systems, such as installment buying, made it easier for consumers to purchase items like automobiles and household appliances. Additionally, the rise of mass production techniques lowered prices and made products more accessible, fostering a culture of consumerism. This period also saw a shift in social norms, with a growing emphasis on personal enjoyment and leisure activities.