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November
03
2017

An attempt to quantify the immeasurable
Steven Saville

To paraphrase Einstein, not everything worth measuring is measurable and not everything measurable is worth measuring. The purchasing power of money falls into the former category. It is worth measuring, in that it would be useful to have a single number that consistently reflected the economy-wide purchasing power of money. However, such a number doesn’t exist.

Such a number doesn’t exist because a sensible result cannot be arrived at by summing or averaging the prices of disparate items. For example, it makes no sense to average the prices of a car, a haircut, electricity, a house, an apple, a dental checkup, a gallon of gasoline and an airline ticket. And yet, that is effectively what the government does — in a complicated way designed to make the end result lower than it otherwise would be — when it determines the CPI.

The government concocts economic statistics for propaganda purposes, but even the most honest and rigorous attempt to use price data to determine a single number that consistently paints an accurate picture of money purchasing power will fail. It must fail because it is an attempt to do the impossible.

The goal of determining real (inflation-adjusted) performance is not completely hopeless, though, because we know what causes long-term changes in money purchasing power and we can roughly estimate the long-term effects of these causes. In particular, we know that over the long term the purchasing power of money falls due to increased money supply and rises due to increased population and productivity.

By using the known rates of increase in the money supply and the population and a ‘guesstimate’ of the rate of increase in labour productivity we can arrive at a theoretical rate of change for the purchasing power of money. Due to potentially-large oscillations in the desire to hold cash and to the fact that changes in the money supply can take years to impact the cost of living, this theoretical rate of purchasing-power change will tend to be inaccurate over periods of two years or less but should approximate the actual rate of purchasing-power change over periods of five years or more.

I’ve been using the theoretical rate of purchasing power change, calculated as outlined above, to construct long-term inflation-adjusted (IA) charts for about eight years now. Here are the updated versions of some of these charts, based on data as at the end of October-2017.

 

 

 

I have been a fulltime professional speculator since 1998 and the owner of a subscription-based web site about the financial markets since 2000. The web site is called “The Speculative Investor”, or “TSI” for short.

In an average week, TSI subscribers receive two reports: a Weekly Market Update on Sunday and an Interim Update on Thursday morning (NYT). The Weekly Update typically has 3000-4500 words and 10-15 charts, while the average Interim Update is about half that size. As well as containing information about the gold, currency, stock, bond and commodity markets, these reports regularly include discussions about macro-economics. The economics-related discussions are from an “Austrian” perspective, because I’ve found that the Austrian School is the only school of economics that is consistently logical and explains how the world really works.

TSI subscribers also get access to a list of stock selections. The TSI stock selections have provided very good long-term returns; however, due to the highly speculative nature of the stocks I tend to focus on, my year-to-year returns have been ‘lumpy’, to put it mildly. For example, since 2000 my own equity portfolio, which comprises many of the stocks covered at TSI, has had six triple-digit years (years when the portfolio was up by at least 100%, without using any debt-based leverage and maintaining a cash reserve of at least 20%) and two years of 50%+ losses. The year-to-year ‘lumpiness’ of the performance that goes hand-in-hand with my focus on relatively risky (by traditional standards) equities will make the TSI stock selections unsuitable for many people.

The price of a TSI subscription is US$240/year or US$25/month.

The TSI Blog was created in 2014, mostly for fun, but also to promote the TSI subscription service and to be a venue for me to make public comments that for one reason or another aren’t suited to the subscription service.

Steven Saville

 

 

 

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