When did American business begin to concentrate on customer needs and Why?

American business began to concentrate on customer needs in the mid-20th century, particularly during the post-World War II economic boom. This shift was driven by increased competition, the rise of consumerism, and the understanding that meeting customer needs could lead to greater customer loyalty and profitability. Companies began to adopt marketing strategies focused on customer feedback and preferences, recognizing that satisfying consumer demands was essential for long-term success.