Catherine Hood Consulting

Seasonal Adjustment Courses

Many economic and business decisions are based on economic information in the form of time series. When analyzing the time series, it is a very common practice to identify and remove seasonal patterns to make the series easier to interpret. It is important for anyone involved with seasonally adjusted series to recognize and understand the various movements present in time series and to understand the various components of a time series (such as the trend) that are estimated during seasonal adjustment.

One of the benefits of using X-12-ARIMA for seasonal adjustment over its predecessors (X-11 and X-11-ARIMA) is the diagnostics available in X-12-ARIMA, so many of the courses have discussions of the diagnostics available. Both X-12-ARIMA and TRAMO/SEATS use regARIMA models for preadjustment of some factors and for forecasting, so we also have a regARIMA modeling class available.

The courses target a broad audience: statisticians, economists, analysts, managers, decision/policy makers, or any one else interested or involved in seasonal adjustment. The content of the courses ranges from basic, non-technical courses to more advanced or specialized courses on seasonal adjustment methods and theory.

Currently Available Courses

We have five basic core modules (more information on the individual modules available here) that can be combined to form a variety of courses to meet a variety of needs ranging from courses for managers to expert seasonal adjusters. The courses can be combined in several ways. Some examples are given below.

• Management Track
• Introduction to Seasonal Adjustment
• Analysis Track
• Introduction to Seasonal Adjustment
• Seasonal Adjustment with X-12-ARIMA in Windows®
• Seasonal Adjustment with TRAMO/SEATS for Windows®
• Seasonal Adjustment with X-12-ARIMA and TRAMO/SEATS in Windows®
• Seasonal Adjustment with X-13-ARIMA-SEATS in Windows®
• Expert Track
• Advanced Diagnostics: Case Studies
• Advanced ARIMA Modeling for Forecasting and Seasonal Adjustment
• Advanced Seasonal Adjustment with X-12-ARIMA
• Advanced Seasonal Adjustment with X-12-ARIMA and Advanced ARIMA Modeling
• Advanced Seasonal Adjustment with TRAMO/SEATS
• Advanced Seasonal Adjustment with X-12-ARIMA and TRAMO/SEATS

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On-line Courses

Our first on-line course became available on August 2, 2010.

• Web Course: Introduction to Seasonal Adjustment

If you would like to see the format of the web courses, or if you would like to learn more about why we do seasonal adjustment, please look at our free sample course "Why Seasonal Adjustment?"

More courses will be available on the web site soon.

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Trademarks and Copyrights

• TRAMO/SEATS is written by Victor Gomez and Agustin Maravall and is available free of charge from the Bank of Spain web site.
• X-12-ARIMA and X-13-ARIMA-SEATS are products of the U.S. Census Bureau and are available free of charge.
• Windows Operating System, Microsoft^® Windows, Copyright Microsoft Corporation

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