Abstract Improving the accuracy of deflators is crucial for measuring real GDP and growth rates. However, construction prices are often difficult to measure. This study uses stratification hedonic methods estimate price indices. The estimated indices based on actual transaction buildings (contract prices) obtained from Statistics Building Starts survey information administrative sector in Japan...

BACKGROUND The frequency of polypectomy is an important indicator of quality assurance for population-based colorectal cancer screening programs. Although administrative databases of physician claims provide population-level data on the performance of polypectomy, the accuracy of the procedure codes has not been examined. We determined the level of agreement between physician claims for polypec...