Fill in the blanks to complete the passage about the U.S. economy. According to the chapter overview, there are three key facts about the U.S. economy: It has a -level of inequality, it's structured to preserve the advantages of the -, and the precursors to this current arrangement began in -. Together, these key factors elaborate on how a concept from the last chapter, -, is present in the U.S. economy. 1980moderateloweconomic elite1950workershigh1930institutional discrimination