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Mankiw’s Principles of Economics Part 8: A Country’s Standard of Living Depends on Its Ability to Produce Goods and Services

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The introduction to this series is here.
Part 1 is here.
Part 2 is here.
Part 3 is here.
Part 4 is here.
Part 5 is here.
Part 6 is here.
Part 7 is here.

Mankiw’s eighth principle of economics is: a country’s standard of living depends on its ability to produce goods and services. He points out that there are vast differences between the average incomes of different countries. In the US, average income has increased about 2% per year adjusted for increases in the cost of living, he says, and doubles about every 35 years. The explanation for this change is productivity, defined as “the amount of goods and services produced from each unit of labor time.” The growth rate of a nation’s productivity determines the growth rate of its average income, he asserts. He dismisses other explanations, such as the prevalence of labor unions and minimum wage laws. He claims that US productivity dropped in the 1970s which accounts for the slow growth of average wages over that period. He concludes with this claim:

To boost living standards, policymakers need to raise productivity by ensuring that workers are well-educated, have the tools needed to produce goods and services, and have access to the best available technology.

This principle supports Philip Mirowski’s Sixth Commandment of Neoliberalism: Thou Shalt Become the Manager of Thyself. “Human beings [are reduced] to an arbitrary bundle of “investments,” skill sets, temporary alliances (family, sex, race), and fungible body parts.” The goal of the entrepreneur of you is to find some way to make yourself valuable enough to fill a slot in some corporate entity that will pay off on your investments. It also supports the Ninth Commandment, Thou Shalt Know that Inequality is Natural, because it tells the entrepreneur of you that if you fail, it’s your fault for being insufficiently productive. The problem is always the workers; and never the owners of capital for they can do no wrong. That comes from the Tenth Commandment, Thou Shalt Not Blame Corporations and Monopolies, especially for investing their capital in foreign countries so jobs are created there instead of in the US. After all, the free flow of capital is critical in Capitalism, as we learn in Mirowski’s discussion of Commandment 8: Thou Shalt Keep Thy Cronyism Cosmopolitan.

Mankiw’s explanation is intellectually dishonest. He only talks about average incomes, not median incomes, and not the incomes of the working people of the US. That enables him to paint a false picture of the economy, and of the role of productivity in increasing standards of living. The leading work on this issue was done by Larry Mishel at the Economic Policy Institute. His April 2012 paper, The Wedges Between Productivity And Median Compensation Growth is the seminal work on this issue. Here’s an updated chart showing the disparity between wages and productivity. For a discussion of the productivity measurement, see this 2014 Bureau of Labor Statistics paper. It’s important to note that Mishel is using the median wage growth for production/non-supervisory workers, not total labor compensation. With this statistic, we look at the actual experience of approximately 80% of workers.
Wage-Productivity gap 1

According to Mishel, the gap in the chart from 2000 to 2011 is the result of three factors (see Table 1):

1. Income inequality increased, with the great gains going to the top few percentiles and the rest stagnant or falling, accounting for 39% of the gap.
2. Income shifted from labor to capital, accounting for 45% of the gap.
3. Output prices diverged from consumer prices, accounting for 16% of the gap.

Dave Dayen discusses Mishel’s paper here, focusing on efforts of conservatives to discredit Mishel’s work. The only consideration that seems even questionable is 3, and Dayen’s discussion seems fair. He concludes with this:

If you believe the Lawrence/Yglesias argument, policies that raise wages are secondary to policies that raise productivity more generally. If you believe the Mishel argument, reconnecting wages to productivity becomes central. Rather than stressing the need to acquire more education and skills, you would support increasing the minimum wage and allowing for more union organizing to put leverage in the hands of labor over capital. You would support proper use of overtime laws to reduce wage theft, and paid family and medical leave to keep wages strong during times of family stress.

But if productivity gains just leak out to the wealthy through financial engineering, all the growth in the world won’t benefit the typical worker.

Mankiw doesn’t acknowledge the problems with his principle, problems which have been evident for a long time as the chart shows. The source of this principle is the neoclassical argument of William Stanley Jevons and John Bates Clark which I discuss in detail here and here. Mankiw is preaching from the Natural Law Bible without mentioning it. This is a perfect example of Keynes’ dismissive statement on these writers: “We have not read these authors; we should consider their arguments preposterous if they were to fall into our hands.“ Certainly this principle is preposterous both factually and theoretically.

Marcy Wheeler TeeVee – Jonathan Gruber and the Cadillac Plan

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There has been a fair amount of misinformation and disinformation about what has been said by Marcy Wheeler on this blog about Jonathan Gruber, his modeling work on healthcare and relationship with the Obama Administration. One instance in this regard, quite unfortunately, was notably made by Paul Krugman. Mr. Krugman, who is a solid liberal voice and worthy of respect, nevertheless very unfairly tarred Marcy with complaints he had, or perceived, with others and he owes better.

First off, I would like to point out the matter of Gruber started primarily about the duty and obligation of disclosure, and there was, unequivocally, a failure in full disclosure by both Mr. Gruber and the White House, both relying on his work (inferring that it was independent), and simultaneously funding it, whether directly or indirectly. For Mr. Krugman to extrapolate that out to being “just like the right-wingers with their endless supply of fake scandals” was startling and beyond the pale. There was also no foundation for it from Marcy’s words and statements on this blog.

The foregoing is something that I, bmaz, felt compelled to say; if you disagree, then your beef is with me, not Marcy, not Firedoglake, nor anybody else. Now, with that said, I wish to present Marcy Wheeler and let her speak for herself about exactly what the Gruber matter is about, and what it means. The attached video clip is from a MSNBC interview of Marcy conducted by David Shuster Tuesday morning.

It should be noted that Marcy was covering the North American International Auto show in Detroit when MSNBC interviewed her, as David Shuster notes. What David didn’t catch was that, the whole time he was discussing the infamous “Cadillac tax” Mr. Gruber’s work is central to, Marcy was standing in front of the Cadillac display. Now that is product placement!

Interestingly enough, in discussing the Cadillac tax, Paul Krugman has flat out admitted the claims of insurance premium reductions leading to wage increases are “exaggerated” and that “Cadillac plans aren’t really luxurious — they reflect genuinely high costs.” Mr. Krugman might want to take a look at the most recent work by Larry Mishel, an economist Mr. Krugman has cited before; in fact the exact economist Paul cited as support for the fact that the wage growth claims were “exaggerated”. Mr. Mishel’s new article seems to undercut the entire Cadillac tax thesis as to wage movement.

UPDATE: Economist Larry Mishel, who was linked to in the main post and referred to with seeming approval by Paul Krugman as well (link to that also in main post) put the following in a comment to his FDL Seminal Post yesterday:

I do think Gruber’s claim about the wage impact of lower health care inflation in the 1990s (and the reverse trends in the 200s) was wrong: The simple tale seemed to support his policy desire to curtail health care costs via the excise tax but digging into the details shows that health care costs have not driven wage trends. This does not mean that lower health care costs might not lead to better wages, just that the scale of the impact won’t move wages appreciably.

I may differ with many of you on the site though in that I don’t impugn Gruber’s motives. I don’t think there’s much of a scandal regarding his contract with HHS. I think his error in the case I’m criticizing is that he’s a health care economist and doesn’t know the details about wage trends. I, on the other hand, have been studying wages for thirty years or more. Gruber clearly over-reached with the argument about health care driving wage trends and has acknowledged that to me privately (yesterday).

So, I think he’s wrong on this issue and I also disagree with him on the overall merits of the health excise tax. But I think he’s a pretty smart, reasonable and straightforward economist. I’ve had to debate some pretty scummy economists and he’s not one of them. (emphasis added)

I agree with Mr. Mishel about the absence of malice by Mr. Gruber. But malice was never ascribed by Marcy Wheeler, she merely pointed out that there was a simple failure to fully disclose potential conflict information, that others had an interest in knowing, and that the assumptions Mr. Gruber’s model was based on may not be correct. These points have been borne out by others, indeed effectively by Paul Krugman himself and other experts he relies on. The tarring that occurred from Paul should be retracted.