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Seasonal adjustment procedures attempt to estimate the sample realizations of an unobservable economic time series in the presence of both seasonal factors and irregular factors. In this paper we consider a factor which has not been considered explicitly in previous treatments of seasonal...
Persistent link: https://www.econbiz.de/10012477969
In the 2018 comprehensive update of the national income and product accounts, the Bureau of Economic Analysis released not seasonally adjusted data, and modified its seasonal adjustment procedures. I find some indication of residual seasonality in the seasonally adjusted data as published before...
Persistent link: https://www.econbiz.de/10012480550
We study the usefulness of root tests as diagnostic tools for selecting forecasting models. Difference stationary and trend stationary models of economic and financial time series often imply very different predictions, so deciding which model to use is tremendously important for applied...
Persistent link: https://www.econbiz.de/10012471879
detrending that achieves all the objectives sought by users of the HP filter with none of its drawbacks …
Persistent link: https://www.econbiz.de/10012455252
Traffic fatalities are the leading cause of mortality in the United States despite being preventable. While several policies have been introduced to improve traffic safety and their effects have been well documented, the role of transitory health shocks or situational factors at explaining...
Persistent link: https://www.econbiz.de/10014512087