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Latest Impact Factors from Elsevier's Decision Sciences Journals

We are pleased to bring you the latest Impact Factors from Elsevier's Operations Research and Management Science journals. Elsevier publish 12 of the 16 top-ranked journals by Impact Factor in this ISI subject category.

Highlights include...

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Journal of Operations Management

2008 Impact Factor
WAS
2.420

2009 Impact Factor
NOW
3.238

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European Journal of Operational Research

2008 Impact Factor
WAS
1.627

2009 Impact Factor
NOW
2.093

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Computers & Operations Research

2008 Impact Factor
WAS
1.366

2009 Impact Factor
NOW
2.116

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Calculating Impact Factors

WHAT IS AN IMPACT FACTOR?
The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. The impact factor helps you evaluate a journal's relative importance, especially when you compare it to others in the same field. The impact factor is calculated by dividing the number of citations in the current year to items published in the two previous years by the total number of items published in the two previous years.

Using Journal X as an example:
Cites in 2010 to items published in:2009
2008
Sum
= 258
= 199
= 457
Number of items published in:2009
2008
Sum
= 116
= 71
= 187
Calculation:Cites to recent items457= 2.444
Number of recent items187

The 2010 Impact Factor for Journal X is 2.444

Journal Performance Measurements

Journal performance measurements offer a systematic, objective means to critically evaluate journals, and several indicators are available. For more information on IFs and other journal performance measurements visit:

http://www.elsevier.com/wps/find/editorshome.editors/biblio