Reflexivity in Finance

Core logic came out with their house price index with data up to November. The data is repeat sale like the Case-Shiller index so should be reasonably reliable and covers all states so is broader than the Case-Shiller index which I commented on in my...

The most recent Case-Shiller house prices (October data) for 20 cities in the US came out a few days ago. The overall impression is that house prices have begun to slowly weaken again following the expiry of the tax credit in April. This is relevant...

OK the Case Shiller house price data is out today (for May). Last months data I pointed out an emerging trend.
"5 cities that did not have a big boom, the change in prices was basically 0 over the last 2 months (with a range of -2% to +1%, while in the boom cities the average was -3.8% (range -1% to -7%). Clearly a significant difference, both statistically and...

Over at http://oldprof.typepad.com/a_dash_of_insight/2009/06/interpreting-housing-indicators.html Jeffrey A. Miller has a good post on seasonality in data and on house prices in particular.
On the latest Case-Shiller US housing price data the most interesting thing I found (based on the more reliable seasonally adjusted data) was that for the 5 cities that did not have a big boom, the change in prices was basically 0 over the last 2 months...