What is true of socioeconomic hierarchies in American society since the 1930s?

Question

Quizplus · Accepted Answer

Since the 1930s, the United States has evolved into a society of middle-class people. The middle class has expanded and become the largest class in America, with a decrease in the number of people in the lower class and an increase in the number of people in the upper class. However, income inequality has also increased in recent decades, with the top 1% of earners capturing a larger share of income and wealth.

What Is True of Socioeconomic Hierarchies in American Society Since