The recent slowdown in the rate of decline for semiconductor prices suggested by the PPI is puzzling in light of evidence that the performance of MPUs has continued to improve at a rapid pace. The authors argue that hedonic indexes provide a more accurate measure of price changes.

We use a large dataset of land sales dating back to the mid-1990s to construct land price indexes for 23 MSAs in the United States and for the aggregate of those MSAs. The price indexes show a dramatic increase in both commercial and residential land prices over several years prior to their peak...