Income inequality has given the rich a greater share of the economic spoils than middle- and low-income earners. That's resulted in a very real impact on the incomes of middle- and low-income households, with the typical full-time American worker now earning $42,000 less than they would have if inequality hadn't surged over the last four decades. That's according to a new analysis from researchers at Rand, the global policy think tank. Its researchers wanted to look at the dollars-and-cents impact on U.S. households from yawning income inequality. Prior to the mid-1970s, Americans' incomes, no matter their level, generally rose in step with overall economic growth. That changed in the late 1970s, with the rich capturing the lion's share of economic growth, while middle-class and lower-income workers eked out gains far below par. In 2018, the typical full-time worker earned about $50,000 - but if that same worker had kept up with the economy's expansion, they would have earned $92,000 annually, the Rand analysis found. Only the top 5% of Americans have enjoyed earnings that approached or exceeded the nation's economic growth. Meanwhile, the top 1% has come out far ahead, gaining a far greater share of economic growth than they did prior to the 1970s. The typical person in the top 1% earned $1.4 million in 2018, but would have earned $630,000 - less than half that amount - were it not for benefitting from widening inequality, the analysis found.