Measuring and monitoring the true level of mortgage delinquencies across an economy is essential for asset pricing and … financial system stability. Yet public measures of mortgage default risk almost always use simple averages across pools of … individual assets, including balance-sheet loans or indices tracking default risk across portfolios of residential mortgage …

Statistical offices use the matched models method to compile consumer price indices (CPIs) to measure inflation. The … substantial underestimates of inflation. Hedonic indices use the whole sample. They are argued to be more useful to price … measurement in markets with a rapid turnover of models in order to avoid the demonstrated bias …