Posts Tagged ‘inequality’


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KearnG20170918A_low  Jeff Sessions


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ColeJ20170908_low  PettJ20170816_low


Everyone’s seen the screaming headlines: the middle-class is back!

The statistic backing up those headlines is median household income (as reported by the Census Bureau), which in 2016 was $59,039.


After years of decline, following the crash of 2000-01 and then again in 2007-08, real median household income (in 2016 dollars) has finally surpassed its previous high—of $58,665 in 1999.

But that’s not the whole story.

First, consider the fact that it took real incomes more than a decade and a half to recover from the collapse. The “good news” is not much consolation for people who endured almost two decades of zero growth in what they took home: their incomes, pensions, and wealth are permanently damaged and likely won’t be repaired within their lifetimes.

Second, the Census Bureau data show that the bulk of the gains in real income in 2016 was explained by one factor: higher employment. In other words, hours worked rose but wages did not. The members of American median households are working harder at more jobs to finally get an increase in incomes.


Finally, consider what is measured in those headline numbers. The median, as folks might remember from a statistics course (or just a teacher’s explanation of how they grade), is the “middle” value: half above, and half below. But we can also calculate the mean (or “average” value) and compare the two. As is clear from the chart, while both the median and mean values (the green and red lines in the chart, measured on the left, respectively) have reached all-time highs, the gap between them—the “skew” in the distribution—has also grown over time. In fact, the ratio of the mean and median incomes (the blue line, measured on the right) has increased—from 1.23 in 1980 to 1.41 in 2016.

This is a clear indication that, while median household incomes in the United States have finally recovered from the crises of recent years, the middle-class itself is falling further and further behind those at the top.

Wouldn’t it be useful if those income statistics were reported in the headlines!


Apologists for mainstream economics (such as Noah Smith) like to claim that things are OK because good empirical research is crowding out bad theory.

I have no doubt about the fact that the theory of mainstream economics has been bad. But is the empirical research any better?

Not, as I see it, in the academy, in the departments that are dominated by mainstream economics. But there is interesting empirical work going on elsewhere, including of all places in the International Monetary Fund (as I have noted before, e.g., here and here).

The latest, from Mai Dao, Mitali Das, Zsoka Koczan, and Weicheng Lian, documents two important facts: the decline in labor’s share of income—in both developed and developing economies—and the relationship between the fall in the labor share and the rise in inequality.

I demonstrate both facts for the United States in the chart above: the labor share (the red line, measured on the left) has been falling since 1970, while the share of income captured by those in the top 1 percent (the blue line, measured on the right) has been rising.

labor shares

Dao et al. make the same argument, both across countries and within countries over time: declining labor shares are associated with rising inequality.

And they’re clearly concerned about these facts, because inequality can fuel social tension and harm economic growth. It can also lead to a backlash against economic integration and outward-looking policies, which the IMF has a clear stake in defending:

the benefits of trade and financial integration to emerging market and developing economies—where they have fostered convergence, raised incomes, expanded access to goods and services, and lifted millions from poverty—are well documented.

But, of course, there are no facts without theories. What is missing from the IMF facts is a theory of how a falling labor share fuels inequality—and, in turn, has created such a reaction against capitalist globalization.

Let me see if I can help them. When the labor share of national income falls—the result of the forces Dao et al. document, such as outsourcing and new labor-saving technologies—the surplus appropriated from those workers rises. Then, when a share of that growing surplus is distributed to those at the top—for example, to those in the top 1 percent, via high salaries and returns on capital ownership—income inequality rises. Moreover, the ability of those at the top to capture the surplus means they are able to shape economic and political decisions that serve to keep workers’ share of national income on its downward slide.

The problem is mainstream economists are not particularly interested in those facts. Or, for that matter, the theory that can make sense of those facts.


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PettJ20170907A_low  199987

no exit

Special mention



John Hatgioannides, Marika Karanassou, and Hector Sala are absolutely right: mainstream macroeconomists and policymakers never venture beyond the “holy trinity” of economic growth, inflation, and unemployment.* Everything else, including the distribution of income and wealth, is relegated to the fringes.

This problem, while always serious, has been magnified in recent decades as inequality has grown to obscene levels, particularly in the United States. The labor share (the blue line in the chart above) has been falling since 1960 and, in the past decade and a half, it dropped an astounding 10.2 percent. Meanwhile, the share of income captured by the top 1 percent (the red line in the chart) has soared, rising from 10.5 percent in 1976 to 19.6 percent in 2014.

In order to rectify the problem, Hatgioannides, Karanassou, and Sala propose to bring inequality in from the margins as the “missing fourth statistic.”

They focus particular attention on inequality in relation to tax contributions. But they do so in the manner that departs from the usual discussion, which leaves the discussion at absolute income tax contributions (such as the share of income taxes paid by each economic group). Those are the numbers we often hear or read, which seek to show how progressive the U.S. tax system is. For example, according to the Tax Foundation, the top 1 percent paid a greater share of individual income taxes (39.5 percent) than the bottom 90 percent combined (29.1 percent).

Instead, Hatgioannides, Karanassou, and Sala concentrate on the ratio of the average income tax per given income group divided by the percentage of national income captured by the same income group (what they call the Effective Income Tax contribution), whence they calculate an inequality index (the Fiscal Inequality Coefficient).

What the Fiscal Inequality Coefficient shows is the relative contribution of filling the fiscal coffers for different pairs of income groups.


In the figure above, they plot the Fiscal Inequality Coefficient based on income shares (they also report a related index based on wealth), of the bottom 90 percent versus the top 10 percent, the bottom 99 percent versus the top 1 percent, and the bottom 99.9 percent versus the top 0.1 percent for 1962, 1980, 1995, 2010, and 2014.

Thus, for example, the Fiscal Inequality Coefficient based on income shares remains relatively constant for all pairs for years 1962 and 1980 but increases significantly by 2010—with the bottom 90 percent effectively contributing 6.5 times more than the top 10 percent, the bottom 99 percent 21.4 times more than the top 1 percent, and the bottom 99.9 percent effectively contributing 89.7 times more than the top 0.1 percent.**

Clearly, the relative income tax burden for those at the top has fallen over time, demonstrating that the U.S. tax system has become less, not more, progressive.

And the authors’ conclusion?

In the current era of fiscal consolidation should the rich be taxed more? Our evidence suggests unequivocally yes.


*Their paper is discussed in the Guardian by Larry Elliott. The submitted version of their article is available here.

**The results are even more dramatic if one calculates the Fiscal Inequality Coefficient based on household wealth shares: in 2010, the Bottom 99.9 percent contributed 208.9 times more than the Top 0.1 percent, nearly four times more than what it was in 1980!