Magic Number Could Be -14%
The Wall Street Journal reported yesterday on two indexes that can show conflicting data on the direction of home prices. These two indexes were the OFHEO index and the Case-Shiller (C-S) Index.
Below I have presented a graph of the C-S index for the Chicago market since January 1991. The index has increased from 80 at the end of 1994 to its present level of roughly 162. The annualized rate of change of this trendline is slightly above 5% per year.
Exhibit 1:

Common wisdom in this area holds that the typical rate of appreciation (prior to 2000) is about 5% annually. The trendline tracks closely with this generally accepted rate of appreciation.
Over the prior 3 years, the index has been above the trendline. It has taken about three years for the C-S index to reverse and come back to the trendline level. To fully recover and get back to equilibrium, it may take another three years below the line.
In order to estimate the amount of the required correction in prices, I have analyzed the Year-over-Year (YOY) rate of change in the C-S index.
Exhibit 2:

During the high-flying years of 2000-2006, the YOY change in prices was about 8% annually. But prior to 2000, prices were averaging about a 3% YOY change. Over the same time period, the annual change in CPI was averaging about 2.5%, so the change in home prices was roughly 0.5% above CPI.
If the market had continued at that same rate of change (0.5% over CPI) from 2000 – 2006, the YOY change in home prices would have been approximately 3.25%. Annual CPI changes from 2000 – 2008 averaged about 2.75%. In January 2000, the C-S index trendline was roughly at 110 (See Exhibit 1). If the index increased by a compounded rate of 3.25% over the next 8 years, it would have been at 142 by January 2008. As of November 2007, the C-S index was at 161.61 or about 14% higher.
A recent article in Business Week described real estate values may need a 25% drop for the housing market to stabilize. The Chicago market has been less volatile and more stable than many other markets in the Nation.
If the Chicago market needs a 14% decline to stabilize, that obviously won’t happen in a single year. Sellers in this market have been quite reluctant to drop prices in order to sell. Most likely, sellers will remain firm and the correction will just require time to reach equilibrium. The typical a long term trend of YOY home price changes is from 3-5%. In order to burn-off the excess value in this market, it will take about 3-4 years for the Chicago market, without further declines in prices. Further price drops will shorten this recovery time. The latest figures from Case-Shiller showed a YOY change of -4.0%. At a -4.0% rate, full recovery may occur in about 2 years.
Below I have presented a graph of the C-S index for the Chicago market since January 1991. The index has increased from 80 at the end of 1994 to its present level of roughly 162. The annualized rate of change of this trendline is slightly above 5% per year.
Exhibit 1:

Common wisdom in this area holds that the typical rate of appreciation (prior to 2000) is about 5% annually. The trendline tracks closely with this generally accepted rate of appreciation.
Over the prior 3 years, the index has been above the trendline. It has taken about three years for the C-S index to reverse and come back to the trendline level. To fully recover and get back to equilibrium, it may take another three years below the line.
In order to estimate the amount of the required correction in prices, I have analyzed the Year-over-Year (YOY) rate of change in the C-S index.
Exhibit 2:

During the high-flying years of 2000-2006, the YOY change in prices was about 8% annually. But prior to 2000, prices were averaging about a 3% YOY change. Over the same time period, the annual change in CPI was averaging about 2.5%, so the change in home prices was roughly 0.5% above CPI.
If the market had continued at that same rate of change (0.5% over CPI) from 2000 – 2006, the YOY change in home prices would have been approximately 3.25%. Annual CPI changes from 2000 – 2008 averaged about 2.75%. In January 2000, the C-S index trendline was roughly at 110 (See Exhibit 1). If the index increased by a compounded rate of 3.25% over the next 8 years, it would have been at 142 by January 2008. As of November 2007, the C-S index was at 161.61 or about 14% higher.
A recent article in Business Week described real estate values may need a 25% drop for the housing market to stabilize. The Chicago market has been less volatile and more stable than many other markets in the Nation.
If the Chicago market needs a 14% decline to stabilize, that obviously won’t happen in a single year. Sellers in this market have been quite reluctant to drop prices in order to sell. Most likely, sellers will remain firm and the correction will just require time to reach equilibrium. The typical a long term trend of YOY home price changes is from 3-5%. In order to burn-off the excess value in this market, it will take about 3-4 years for the Chicago market, without further declines in prices. Further price drops will shorten this recovery time. The latest figures from Case-Shiller showed a YOY change of -4.0%. At a -4.0% rate, full recovery may occur in about 2 years.






