An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Seasonal adjustment methods process and publish millions of time series across the world each month, and judgment of the adequacy relies heavily upon frequency domain diagnostics. In particular, peaks in the spectral density estimates of seasonally adjusted data are indicative of an inadequate adjustment. Spectral peaks are currently assessed in the X-12-ARIMA program via the visual significance approach, but this method lacks a rigorous statistical foundation. This paper provides such a foundation by providing measures of uncertainty for spectral peak measures, allowing for formal hypothesis testing. To apply the test we develop fixed-bandwidth fraction asymptotics for taper-based spectral density estimates.
Share
Related Information
Some content on this site is available in several different electronic formats. Some of the files may require a plug-in or additional software to view.
Top