Joseph Stiglitz in Politco:
While other economists were obsessed with extolling the virtues of the market economy, I focused a lot of my work on why markets fail, and I devoted much of my Ph.D. thesis at MIT to understanding the causes of inequality.
Nearly half a century later, the problem of inequality has reached crisis proportions. John F. Kennedy, in the spirit of optimism that prevailed at the time I was a college student, once declared that a rising tide lifts all boats. It turns out today that almost all of us now are in the same boat—the one that holds the bottom 99 percent. It is a far different boat, one marked by more poverty at the bottom and a hollowing out of the middle class, than the one occupied by the top 1 percent.
Most disturbing is the realization that the American dream—the notion that we are living in the land of opportunity—is a myth. The life chances of a young American today are more dependent on the income and education of his parents than in many other advanced countries, including “old Europe.”
Now comes Thomas Piketty, who warns us in his justly celebrated new book, Capital in the 21st Century, that matters are only likely to get worse. Above all, he argues that the natural state of capitalism seems to be one of great inequality. When I was a graduate student, we were taught the opposite. The economist Simon Kuznets optimistically wrote that after an initial period of development in which inequality grew, it would begin to decline. Although data at the time were scarce, it might have been true when he wrote it: The inequalities of the 19th and early 20th centuries seemed to be diminishing. This conclusion appeared to be vindicated during the period from World War II to 1980, when the fortunes of the wealthy and the middle class rose together.