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With the release of last week's Consumer Price inflation numbers, the debate
over the accuracy of the government's reported Consumer Price Index data was
once again front and center. The official numbers showed that the overall rate
of consumer inflation rose .2% while the over-hyped core rate rose just a paltry
.1%.
However, these incredible April numbers were the result of a seasonal adjustment
that removed much of the increase in gasoline prices. Unbelievably, the report
claimed that consumer's energy costs were unchanged while the actual
price of crude oil rose about 12.5% and gas prices rose 11% during the same
period in question -- that's some adjustment!
One of the reasons it is imperative to accurately calculate inflation is that
you need a true reading on price increases in order to get a true reading on
economic growth. If we used an accurate inflation rate to deflate nominal G.D.P.
it would have certainly settled the argument as to whether we or not the economy
is in recession. Since most investors are bound by official government data,
I thought it would be worthwhile to use the Consumer Price Index to derive
real G.D.P. rather than the chain type price index -- which is an even more
tortured inflation measurement than the C.P.I. The reason why the C.P.I. is
a better estimate of inflation than the chain type price index is the chain
type index allows substitution between categories, while the C.P.I. is limited
to substitution within a specific category.
The following graphs show G.D.P. growth rates using the chain type price index,
annualized quarterly growth rate in C.P.I. and the year over year growth rate
in C.P.I.
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Nominal G.D.P. |
Chain Type Index |
Real G.D.P. |
Q1 - 2008 |
3.2% |
2.6% |
0.6% |
Q4 - 2007 |
3.0% |
2.4% |
0.6% |
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Nominal G.D.P. |
C.P.I. Annualized
Growth Rate |
Real GDP |
Q1 - 2008 |
3.2% |
2.8% |
0.4% |
Q4 - 2007 |
3.0% |
5.6% |
-2.6% |
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Nominal G.D.P. |
C.P.I. Year Over
Year Growth Rate |
Real G.D.P. |
Q1 - 2008 |
3.2% |
4.1% |
-0.9% |
Q4 - 2007 |
3.0% |
4.0% |
-1.0% |
Using the government's data on year-over-year inflation growth rates instead
of chain, the recession began in Q4 2007 and the last two quarters produced
negative real G.D.P growth rates. I hasten to add that investors know this;
they experience real-world inflation everyday and know actual economic growth
is much weaker than reported. And I'm not even using a more realistic rate
of inflation, just the understated, "official" gauge that is the C.P.I.
The two most important takeaways from this are that A) the economy is much
slower and B) inflation is much higher than what is generally accepted. And
it is that misconception that provides investors with the ongoing investment
opportunity in real assets.
*I discuss this and more on my podcast, The
Mid-Week Reality Check!
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