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ISM Report On Business® Seasonal Adjustments 2013

Seasonal adjustments are made annually. The new seasonal adjustments are effective with the January reports. The seasonal adjustment factors are developed by an outside third party and provided to ISM in January.

The indexes that are currently seasonally adjusted are:

  • Manufacturing: New Orders, Production, Employment and Supplier Deliveries

  • Non-Manufacturing: Business Activity, New Orders, Employment and Prices

Current Seasonal Adjustment Information

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