Labor's share of income

Since yesterday was Labor Day, here excerpts from some past posts discussing the issue of labor's share of income has changed over time and how much of what people say about it is misleading.

From Labor’s Share of GDP: Wrong Answers to a Wrong Question By Alan Reynolds. 

"Jason Furman and Peter Orszag found “the decline in the labor share of income is not due to an increase in the share of income going to productive capital—which has largely been stable—but instead is due to the increased share of income going to housing capital.” Depreciation and government, they noted, also gained an increased share (i.e., grew faster than labor income.)" 

Workers do not receive shares of GDP – they receive shares of personal or household income. 

Contrary to popular confusion, dividing employee compensation (wages and benefits) by GDP does not measure how a capitalist private economy (e.g., “superstar firms”) divides income between labor and capital. Most obviously, the government makes up a huge share of GDP, including nonmarket goods like defense and public schools. Nonprofits also account for a lot of GDP, with no obvious payout to labor or capital. Less obviously, depreciation makes up another huge share of GDP, including wear and tear on public highways and bridges as well as private equipment, homes, and buildings. The “imputed rent on owner-occupied homes” is another large piece of GDP. Asking if labor is getting a fair share of defense, depreciation and imputed rent is a truly foolish question. Net private factor income would be a better gauge than GDP, for the purpose at hand, but still flawed. The ratio of compensation to GDP uses the wrong numerator as well as an untenable denominator. Labor income must add the labor of self-employed proprietors.  

When people say “labor’s share is falling,” they surely mean income people receive from work has not kept up with income people (often the same people) receive from property: dividends, interest, and rent. But, that crude Piketty-Marx labor/capital dichotomy ignores another increasingly important source of personal income: namely, government transfer payments from taxpayers to those entitled to cash and in-kind benefits."

"labor’s share of household income is highest in deep recessions (77.5% in 1982, 76.2% in 2009) and lowest at cyclical peaks (70.6% in 2000, 68.3% in 2007). The higher labor share in recessions does not mean recessions are good for workers, of course, but that they are even worse for business and investors. Those who equate a higher labor share of income (e.g., during recessions) with higher real income for workers are making a basic and very large mistake." 

"labor’s somewhat smaller share of income is not because of any sustained rise of capital income or capital gains. It is because of a sustained rise in the share of income from transfer payments and a sustained fall in the labor force participation rate."

"Labor’s share of personal income fell mainly because the share devoted to government transfer payments rose. Labor’s share of GDP fell for other reasons (rising shares going to housing, government, and depreciation), but it is a fundamentally misconstrued statistic used to rationalize irresponsible remedies to an illusory problem of “monopolies.”"" 

From The Labor Share Fell. So What? by Alex Tabarrok.

"I have also plotted total compensation to labor (in real terms) in the graph above and far from shrinking it is higher than ever and growing. Moreover the right axis is logged so you can also see that outside of recessions the growth rate of labor compensation looks quite steady (similar slope over time). (Labor compensation per member of the labor force is noisier but looks similar)."

"In short, the data are consistent—not proof of, but consistent with—a story in which capital has become more productive, raising output. More productive capital also raises the demand for labor, so while more of the new output goes to capital in the first instance, the pie is growing and labor’s absolute compensation has grown with it."

Comment from Scott Sumner

"People often assume that if labor's share is falling then capital's share is rising. That is not always true, as GDI also includes depreciation and indirect business taxes, both of which have been rising as a share of GDI. So capital's share has risen by considerably less than labor's share has fallen.

Matt Rognlie showed that much of the rise in capital income has been the implicit rent on owner-occupied housing, which is not what most people think of when they hear "capital income". Another part of the rise is labor income being reclassified as capital income for tax purposes."

BLS Overstates Drop in Labor Share by David Henderson. 

"The underlying assumptions about "proprietor income" are biasing the labor share calculations. The calculation of labor share involve adding compensation received by employees to "proprietor income," which is the labor income received by those who run their own business. However, proprietor income is conceptually tough to measure, because someone who owns their own business can receive both "labor income," as if the person was an employee of their own business, and "capital income," as the owner of the business. In the real world, these two types of payments are jumbled together. To address this issue, the Bureau of Labor Statistics has assumed that the hourly labor compensation of proprietors is the same as that of employees. However, if the labor income of proprietors is actually rising over time, then this assumption means that the labor share is understated. One study finds that about one-third of the observed decline in labor share is due to this assumption that the hourly labor compensation of proprietors is the same as that of employees, rather than using an alternative method that tries to estimate the capital income of proprietors directly. (bold and italics in original)"

Labor’s share of income in the very long run is pretty stable by Scott Sumner.

"It seems silly to focus on gross domestic income, which includes depreciation and indirect taxes.  If we subtract them out we get the more conventional measure of national income, the way most people envision the concept.  And using that measure the labor’s share has been amazingly stable, rising from 68.0% in 1965 to 68.1% in 2015. Capital’s share fell from 32.0% to 31.9%.  No change in 50 years! Is that too good to be true?  Yes, for instance in 1990 labor’s share was 72.4%, so it’s just a coincidence. But it does suggest that labor’s share in the very long run is pretty stable."