Introducing the 2013 release of the Journal Citation Reports

More than 10,000 journals in 83 countries receive their Journal Impact Factor

The journal selection process for the Journal Citation Reports is an ongoing exercise focused on identifying, evaluating and selecting the most important and influential international and regional journals for coverage in Thomson Reuters Web of Science®. Once citations are available for a minimum two-year period, the data is analyzed and published in the Journal Citation Reports® (JCR).  

These reports provide an assessment of a journal’s standing in scholarly literature through the objective evaluation of quantifiable, statistical information. The analysis of 2012 citation data comprises impact and influence metrics and millions of cited and citing journal data points from the Thomson Reuters Web of Science®.

The 2013 release of the Journal Citation Reports include:

  • 10,853 journal listings in 232 disciplines
  • Representation of 83 countries
  • 379 journals receiving their first Journal Impact Factor
"Since its inception in 1975, the Journal Citation Reports continue to be a reliable benchmark for assessing the impact and influence of scholarly journals worldwide," said Marie McVeigh, director of content selection for the Web of Science. "Thomson Reuters understands the importance of these metrics in the scholarly community and is dedicated to preserving their accuracy and reliability in the ongoing selection of the world’s top-tier international and regional journals – journals that exemplify the quality demanded by researchers and authors worldwide."