Four options for modeling and forecasting time series data containing increasing seasonal variation are discussed, including data trans formations, double seasonal difference models and two kinds of transfer function-type ARIMA models employing seasonal dummy variables. An explanation is given for t
Forecasting Time Series with Trading Day Variation
โ Scribed by S. C. Hillmer
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 537 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0277-6693
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โฆ Synopsis
Abstract
Some levels of economic activity change over the days of the week. Also, the composition of the calendar changes over the years so that a particular month contains a different configuration of days of the week each year. The effects of the changing composition of the calendar upon a monthly time series is called trading day variation. This paper discusses one way to model trading day variation in monthly time series and how this model can be used to obtain improved forecasts over univariate ARIMA models. The ideas are illustrated on an actual data set.
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