Harvard macro-economist, Greg Mankiw growing economic inequality and its causes in the NY Times (pointed from Mark Thoma):
The best data on the superrich comes from Thomas Piketty … and Emmanuel
Saez… They report that … the superrich have been getting an increasing slice
of the economic pie. In 1980, the top 0.01 percent of the population had 0.87
percent of total income. By 2006, their share had more than quadrupled to 3.89
percent, a level not seen since 1916 …
Also, the trend toward increasing inequality has been fairly steady, despite
changing political winds. The income share of the richest families increased
substantially both during Ronald Reagan’s eight years in office and during Bill
Clinton’s.
The best diagnosis so far comes from … Claudia Goldin and Lawrence F.
Katz… Their bottom line: “the sharp rise in inequality was largely due to an
educational slowdown.” According to Professors Goldin and Katz, for the past century technological
progress has been a steady force not only increasing average living standards,
but also increasing the demand for skilled workers relative to unskilled
workers. …
But recently things have changed. Over the last several decades, technology
has kept up its pace, while educational advancement has slowed down. …
While education is the key to understanding broad inequality trends, it is
less obvious whether it can explain the incomes of the superrich. Simply going
to college and graduate school is hardly enough to join the top echelons…
Education can explain part of growing inequality: the fact that a household of two college-educated earners has gained considerably on a family of one blue-collar breadwinner or two service-economy workers. It explains the growing economic distance between the Northern Virgina suburbs and say western Pennsylvania. But it does not explain the difference between Central Park West or the Upper West Side in Manhattan, Beverly Hills or Malibu in greater LA, and Palo Alto and the upscale suburbs of Silicon Valley and everywhere else. The fact of the matter remains that a significant percentage of the self-made richest people in America and around the world do not have college degrees, Bill Gates being the most obvious case in point. So what accounts for the incredibly rising tail of the income distribution – the fact that Bill Gates and company are so much richer than a family with two college-degree wage earners? Education fails to explain this.
Periods of economic transformation, like the one we are going through from the industrial to the creative economy, or from agriculture to industry a century or two ago, are marked by rising economic inequality. The reason is that the mechanisms for generating wealth change dramatically during such periods. MIT economists Frank Levy and Peter Temin make the important point that a key reason for rising economic inequality is the breakdown of old institutions (the New Deal broadly construed) that mitigated economic inequality.
But what most ignore is that the basis for economic wealth-creation and thus inequality have shifted massively today. That’s Mankiw’s main point, really – the massive growth not in the upper-middle class or even the growing numbers of “millionaires” but the incredible growth in the distance between the super-rich and everybody else.
In today’s idea-driven, creative economy super-wealth comes increasingly from control over royalties derived from specialized intellectual property in one from or another (new technology, new forms of entertainment, new investment vehicles and so on). And it is the growing distance between those at the commanding heights of the royalty economy and the rest of us who derive income from wages that is a key dimension of growing economic inequality.
In my view, the key to mitigating economic inequality rests on a two part strategy. On the one hand, new institutions are needed that can generate less skewed distribution of the proceeds from royalties. On the other new mechanisms will have to be found to increase the earnings of those at the very bottom by improving the productivity and in turn the wages, benefits and working conditions of those who work in the low-wage service economy (as was done in the previous era for blue-collar work).
Your thoughts.