In the late 1970s, the richest 1 percent of American families took in about 9 percent of the nation’s total income; by 2007, the top 1 percent took in 23.5 percent of total income.
It’s no coincidence that the last time income was this concentrated was in 1928. I do not mean to suggest that such astonishing consolidations of income at the top directly cause sharp economic declines. The connection is more subtle.
The rich spend a much smaller proportion of their incomes than the rest of us. So when they get a disproportionate share of total income, the economy is robbed of the demand it needs to keep growing and creating jobs.
What’s more, the rich don’t necessarily invest their earnings and savings in the American economy; they send them anywhere around the globe where they’ll summon the highest returns — sometimes that’s here, but often it’s the Cayman Islands, China or elsewhere. The rich also put their money into assets most likely to attract other big investors (commodities, stocks, dot-coms or real estate), which can become wildly inflated as a result.