Does the CPI Understate Inflation?

REVISED AND RE-DATED

A website called Shadow Government Statistics offers an alternative estimate of inflation. According to SGS, “methodological shifts in government reporting have depressed reported inflation, moving the concept of the CPI away from being a measure of the cost of living needed to maintain a constant standard of living.” (Related post, here.) According to a chart at the linked page, year-over-year inflation is now about 9 percent, as opposed to the official government figure of about 2 percent.

The claim by SGS has merit, and not only because the definition of inflation has shifted. Specifically:

• Government spending (at all levels) rose by 6 percentage points between 1980 and 2009. (See the graph at this post.)

• Most government spending is inherently inflationary.

The inherently inflationary nature of government spending can be grasped by considering the case where government spending is financed by taxes:

• Suppose that in the absence of government the GDP of the United States would be, as it is today, about $15 trillion. (Actually, as I show here, GDP would be a lot more than today’s $15 trillion were government to do nothing more than provide defense and justice.)

• Suppose, further, that a bunch of governors arrives on the scene one fine day to announce: “You Americans need our services, so we’re going to tax you $5 trillion in order to provide things that we want you to have.” About 20 percent of the $5 trillion — the money spent on defense and justice — will be of value to almost everyone because (among other things) it protects economic activity. But most of the things our governors wants us to have — a hodge-podge of programs and regulations — will be valued mainly by those governors (i.e., politicians and bureaucrats) and narrow constituencies. The hodge-podge of programs and regulations, along with our governors’ habit of taxing success, raises the real price of government to far more than the $5 trillion shown in our national income accounts.

• Our governors’ “generous” confiscation of $5 trillion has the same effect as if the producers of $5 trillion worth of real (non-government) goods and services walk off the job. More accurately, it’s as if they walk off the job and begin to vandalize their capital (homes, commercial buildings, computer networks, etc.). Specifically, according to the chairwoman of Obama’s Council of Economic Advisers, tax increases have a multiplier effect of about 3 (i.e., every dollar of a tax increase yields a 3-fold decrease in GDP). Another economist estimates that the supply of labor declines by 1.9 percent in response to a 1 percent cut in wages (a tax is equivalent to a cut in wages). Even transfer-payment schemes (e.g., Social Security) have a negative economic effect because they penalize producers for the benefit of non-producers.

• Despite the reduction in real output that accompanies government,our governors pretend that they are producing $5 trillion worth of services, so (1) they levy taxes for those services, most of which taxes fall on the productive sector, and (2) they pay the producers of government services (government employees and contractors)  with those taxes.

• In sum, government pays the producers of government services in “empty dollars,” which those producers then try to spend on real output. And so we have $15 trillion chasing $10 trillion worth of real goods and services.

That’s real inflation. No deficit spending necessary. And it happens every time our governors commandeer additional resources, thus widening the gap between what the productive sector could produce and what it actually produces.

What if government were to borrow the $5 trillion instead of imposing $5 trillion in taxes? Borrowing doesn’t change the outcome, just the way we get there. There is still $15 trillion chasing real output of $10 trillion.

Now, not all of that government spending is inherently inflationary. The protection of citizens and their property from foreign and domestic predators (defense and justice) is essential to economic growth and the orderly functioning of free markets. Government spending on defense and justice currently accounts for 8 percent of GDP, whereas government spending (at all levels) currently accounts for 36 percent of GDP. Let’s say, for the sake of argument, (1) that the “right” level of government spending is 10 percent of GDP (the level that obtained in the early 1900s), (2) that the 10 percent is funded by a system of taxes which isn’t punitive toward investors and entrepreneurs (e.g., a single, flat, tax rate), and (3) that the 10 percent is not accompanied by burdensome regulations. Even in the absence of punitive taxes and burdensome regulations, the increase in government spending from 10 to 36 percent of GDP caused prices to rise by 25 percent. Inflation of 25 percent, when spread over 80 years and more, may seem inconsequential. But it is real — real theft, that is.

Moreover, the growth of government spending has been accompanied by punitive taxes and burdensome regulations. As a result, real GDP is 68 percent below its potential. In other words, in the absence of the regulatory-welfare state, real GDP would be more than 3 times its present level.

Visible inflation is bad enough; invisible inflation is a real killer.