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Inflation Update
North Peak Asset Management
May 14, 2013


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For Professional Use Only

 

Basing investment decisions on inaccurate measurements of the inflation rate can result in investors unknowingly positioning their portfolios to lose purchasing power over time.  This mis-measurement could be especially dangerous when yields are low.  For example, evaluating a nominal 3% investment opportunity using an inaccurate 2% inflation rate  indicates a marginally attractive 1% real return opportunity.  However, if inflation is actually running at 5%, this becomes a deeply unattractive negative 2% real return investment.

 

While there are numerous valid ways to calculate the inflation rate, consistency in the methodology used is important to ensure biases aren’t unconsciously introduced.  One of the most commonly used measurements of inflation, the Consumer Price Index (CPI), has been modified several times since its introduction, and an argument can be made that these changes mainly resulted in understating the inflation rate. 

 

For example, in 1983 the Bureau of Labor Statistics (BLS) changed from using actual  house sales to using a “rental equivalency” calculation.  This is calculated by estimating owner-occupants’ housing costs as the amount they forgo by not renting out their homes.  Additionally, the BLS has introduced a “hedonic adjustment” which qualitatively adjusts for improvements in goods.  For example, a new $700 laptop is much more powerful than a $700 laptop built 5 years ago.  Therefore a qualitative hedonic adjustment might be made to reflect this by adjusting down the price of the new laptop by 10%.  However, whether a consumer actually receives a 10% benefit from these improvements is debatable.  Both these changes tend to put downward pressure on the CPI calculation.

 

IMPLICATIONS FOR PORTFOLIO MANAGEMENT

 

There are several organizations that create alternate ways of calculating inflation and one of them, Shadow Government Statistics, simply uses the BLS’s pre-1983 methodology (shown above as the gold area of the chart) to track inflation.  Interestingly, it indicates a much higher rate of inflation than does the BLS’s current methodology (in green and red).

How should this analysis be incorporated into portfolios?  One way is to make sure that the inflation hedging allocation of a portfolio isn’t tied exclusively to a measure of inflation that may understate inflation.

Many investors, for example, use Treasury Inflation Protected Securities (TIPS) as their primary inflation hedge.  However, because the inflation adjustments made to TIPS rely on the CPI, TIPS may not reflect the actual rate of inflation experienced by investors.

This makes the case for expanding the types of investments used to hedge inflation beyond just TIPS. Asset classes such as Global Natural Resource equities and Commodities, for example have the potential benefit of having strong correlations to changes in inflation while not being tied to the BLS's CPI calculation. Further, these asset classes more directly reflect the actual increases (and decreases) of inflation because they are closely connected with the underlying fundamentals of inflation. Combining them with TIPS also has the possible benefit of creating a more diversified portfolio for hedging inflation risk.

 

 

 

(c) North Peak Asset Management

www.NorthPeakAM.com


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