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About Those “Hedonic Adjustments” to Inflation: Ignoring the Systemic Decline in Quality, Utility, Durability and Service

About Those “Hedonic Adjustments” to Inflation: Ignoring the Systemic Decline in Quality, Utility, Durability and Service

The quality, durability, utility and enjoyment-of-use of our products and services has been plummeting for years.
One of the more mysterious aspects of the official inflation rate is the hedonic quality adjustments that the Bureau of Labor Statistics makes to the components of the Consumer Price Index (CPI).
The basic idea is that when innovations improve the utility (and pleasure derived from) a product, the price is adjusted to reflect this improvement.
So if television screens become larger, while the price per TV remains the same, the hedonic quality adjustment adjusts the price down when calculating the CPI.
In other words, since we’re getting more for our money–more quality, more features, more goodies, more pleasure–the price is adjusted down to reflect this. If a TV that cost $250 had a 19-inch screen in the old days, and now a $250 TV has a 27-inch screen, the price of TVs in the CPI is adjusted down to reflect this increase in what the consumer is getting for her $250.
So while a TV still costs $250 to the consumer, in terms of measuring inflation the TV is reckoned to cost (for example) $225, as the consumer is getting a larger screen for her $250.
In other words, the price of TVs declines when measuring for inflation, even if the retail price remains unchanged. This is how the official rate of inflation can be so low even as real-world costs keep rising.
If you read the above link, you’ll find the mathematical model used to reduce the price of products when calculating the CPI, i.e. the rate of inflation.

…click on the above link to read the rest of the article…

Estimating the Effect of Hedonic Quality Adjustments on the Consumer Price Index | The Consumer Price Illusion

Estimating the Effect of Hedonic Quality Adjustments on the Consumer Price Index | The Consumer Price Illusion.

Having an informed debate over Hedonic Quality Adjustments is difficult due to the lack of comparable consumer price indices. A few exist, however, andtoday we will look at an index compiled by PriceStats, an off-shoot of MIT’s Billion Prices Project, which scrapes the internet for prices and compiles a daily index that aims to track inflation in real-time.

The time series eschews hedonic and seasonal adjustments and relies on sampling over 5 million products to produce a very different look at inflation (CPI included for comparison):

price_series

Since starting calculation of the index in mid-2008, PriceStats inflation series has remained consistently above the CPI as reported by the BLS. Considering the differences in methodology this provides an estimate to how much Hedonic Quality Adjustments have been used to understate the head-line CPI figures. Currently, the CPI uses quality adjustments on over 32% of the items used in its calculation. 

…click on the above link to read the rest of the article…

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