Migration, Income Percentiles and the "Rising Inequality" Myth
Referring my readers to Supreme Court cases, law review articles or Congressional Research Service reports may be a futile attempt at "tough love." But referring them to economics articles? That's just plain blogospheric masochism.
Having said that:
For purposes of U.S. economic policy, such a statistic would be most useful. For critics of U.S. economic policy, especially the Paul Krugman - Robert Frank - Frank Pasquale wing of the radical malcontent left, it would be most damning.
The latest leftist fashion is not to criticize American economic conditions generally (since they can't — recessions and bubbles notwithstanding, the American economy is still a strong cornerstone of the global economic engine and America is still the foremost land of opportunity in the world). They instead now prefer to obsess about some vague gobbledygook "problem" usually referred to as "rising income inequality."
Haters of American capitalism cannot legitimately say, for example, that "the rich get richer while the poor get poorer." It's simply not true. They cannot say that federal income taxes aren't obscenely progressive — they are. They cannot say that recent tax cuts mostly benefited the rich — they did not. They cannot say that working-class Americans are facing stagnant wages — when benefits are included, blue collar workers are making more than ever. Every absolute metric of American economic conditions, over any substantial period of time, shows that, overall and on average, American capitalism works for workers.
So the new tactic of those who are running out of ways to complain about American capitalism is to lament, not the fiction of falling welfare, but the semi-fiction of "rising inequality." The poor may be getting richer, they admit, but not as fast as the rich. The gains from economic growth are "disproportionately" going to the best off among us.
This is, of course, utter nonsense.
Just about any measure of income inequality must be based on percentiles — "top 1%, "top 20%, "bottom 20%," etc. But the problem with time series analyses of income percentiles is that those percentiles are not static. The people in the "top 1%" today were not, as a rule, the "top 1%" in the past and will not be the "top 1%" in the future — the demographic is fleeting and comprised at any one moment largely of people enjoying one-time windfalls: celebrities, athletes, lottery winners, people who retire and sell their businesses, farms or property. The longer the time horizon, the greater the "churn" among the hyper-rich. Consider: how many truly enduring (i.e., multi-generational) "mega-rich families" are there in America? Extreme wealth dissipates amazingly quickly here — far faster than in, e.g., Europe or Latin America.
Far more important than the churn at the top is the churn at the bottom. A significant — perhaps the largest — component of the "bottom 20%" of American households are immigrant households. Tired-poor-huddled, etc. But today's immigrant households are not tomorrow's immigrant households: even in post-Ellis-Island America, immigrants move up the economic ladder with an astonishing and magnificent alacrity. Immigrant poverty almost never passes from one generation to the next. Today's immigrant poor are tomorrow's working class and next week's middle class.
In conclusion, since we do not have a caste system in America, what is the use of comparing the "top x%" with the "bottom x%" over time when those percentiles are simply not the same people from one period to the next? Using time series percentiles as indicia of "growing income inequality" is a willful deceit by academics who know exactly what kind of analytical fraud they are peddling. To them, lying in defense of progressivism is no vice.
Meanwhile, this new "income per natural" metric — if it can be adequately measured — would go a long way to debunking the "poor stay poor" myth proffered by the leftist pseudo-intelligentsia, by carving out the immigration component of the "bottom x%" and making time series data more reflective of reality. Bottom line: The fact that the world's poorest people are still desperate to come here skewers the limousine-hating antipathy of limousine liberals. The more and better data we have to show this, the better.
(Via Will Wilkinson.)
---
Meanwhile, to the extent that there actually is a "permanent underclass" in America — particularly inner city, minority, single-parent households — one should ask whose policies brought into being the conditions that make such an underclass possible. Hint: Not any libertarian's or laissez-faire capitalist's. More on that in a future podcast — if I ever get around to editing and posting it (it's already recorded).
Having said that:
It is easy to learn the average income of a resident of El Salvador or Albania. But there is no systematic source of information on the average income of a Salvadoran or Albanian. In this new working paper, research fellow Michael Clemens and non-resident fellow Lant Pritchett create a new statistic: income per natural — the mean annual income of persons born in a given country, regardless of where that person now resides.That is from the abstract of an exciting new paper from the Center for Global Development. The authors are attempting to craft a new metric, "income per natural," that would adjust traditional measures of income and welfare, most notable GDP per capita, to reflect migration trends.
If income per capita has any interpretation as a welfare measure, exclusive focus on the nationally resident population can lead to substantial errors of the income of the natural population for countries where emigration is an important path to greater welfare.
...
The bottom line: migration is one of the most important sources of poverty reduction for a large portion of the developing world.
For purposes of U.S. economic policy, such a statistic would be most useful. For critics of U.S. economic policy, especially the Paul Krugman - Robert Frank - Frank Pasquale wing of the radical malcontent left, it would be most damning.
The latest leftist fashion is not to criticize American economic conditions generally (since they can't — recessions and bubbles notwithstanding, the American economy is still a strong cornerstone of the global economic engine and America is still the foremost land of opportunity in the world). They instead now prefer to obsess about some vague gobbledygook "problem" usually referred to as "rising income inequality."
Haters of American capitalism cannot legitimately say, for example, that "the rich get richer while the poor get poorer." It's simply not true. They cannot say that federal income taxes aren't obscenely progressive — they are. They cannot say that recent tax cuts mostly benefited the rich — they did not. They cannot say that working-class Americans are facing stagnant wages — when benefits are included, blue collar workers are making more than ever. Every absolute metric of American economic conditions, over any substantial period of time, shows that, overall and on average, American capitalism works for workers.
So the new tactic of those who are running out of ways to complain about American capitalism is to lament, not the fiction of falling welfare, but the semi-fiction of "rising inequality." The poor may be getting richer, they admit, but not as fast as the rich. The gains from economic growth are "disproportionately" going to the best off among us.
This is, of course, utter nonsense.
Just about any measure of income inequality must be based on percentiles — "top 1%, "top 20%, "bottom 20%," etc. But the problem with time series analyses of income percentiles is that those percentiles are not static. The people in the "top 1%" today were not, as a rule, the "top 1%" in the past and will not be the "top 1%" in the future — the demographic is fleeting and comprised at any one moment largely of people enjoying one-time windfalls: celebrities, athletes, lottery winners, people who retire and sell their businesses, farms or property. The longer the time horizon, the greater the "churn" among the hyper-rich. Consider: how many truly enduring (i.e., multi-generational) "mega-rich families" are there in America? Extreme wealth dissipates amazingly quickly here — far faster than in, e.g., Europe or Latin America.
Far more important than the churn at the top is the churn at the bottom. A significant — perhaps the largest — component of the "bottom 20%" of American households are immigrant households. Tired-poor-huddled, etc. But today's immigrant households are not tomorrow's immigrant households: even in post-Ellis-Island America, immigrants move up the economic ladder with an astonishing and magnificent alacrity. Immigrant poverty almost never passes from one generation to the next. Today's immigrant poor are tomorrow's working class and next week's middle class.
In conclusion, since we do not have a caste system in America, what is the use of comparing the "top x%" with the "bottom x%" over time when those percentiles are simply not the same people from one period to the next? Using time series percentiles as indicia of "growing income inequality" is a willful deceit by academics who know exactly what kind of analytical fraud they are peddling. To them, lying in defense of progressivism is no vice.
Meanwhile, this new "income per natural" metric — if it can be adequately measured — would go a long way to debunking the "poor stay poor" myth proffered by the leftist pseudo-intelligentsia, by carving out the immigration component of the "bottom x%" and making time series data more reflective of reality. Bottom line: The fact that the world's poorest people are still desperate to come here skewers the limousine-hating antipathy of limousine liberals. The more and better data we have to show this, the better.
(Via Will Wilkinson.)
---
Meanwhile, to the extent that there actually is a "permanent underclass" in America — particularly inner city, minority, single-parent households — one should ask whose policies brought into being the conditions that make such an underclass possible. Hint: Not any libertarian's or laissez-faire capitalist's. More on that in a future podcast — if I ever get around to editing and posting it (it's already recorded).
Related Posts (on one page):
- The Art of the Steal
- Some Thoughts on American Poverty
- Migration, Income Percentiles and the "Rising Inequality" Myth
Posted by Kip on
31 March 2008.



