Recent research has clarified the nature of measurement errors in U.S. price indexes. Changes in the quality of goods create severe problems. Laspeyres-type indexes suffer from substitution bias from one good to another and from one type of outlet to another. Available evidence suggests that the...

This paper uses Whiteman's(1986) frequency-domain optimization methodology to parameterize the precommitment period in a standard rational expectations policy design model. This allows researchers to adopt an empirical approach to the time consistency issue. That is, the operative commitment...