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But they provide a lousy and expensive filtering. So-called "high impact" journals suffer more retractions. http://peterdedmonds.blogspot.dk/2015/06/retraction

• Retric 11y ago
  Low impact journals may be significantly worse, but if fewer people look for defects fewer defects get found.
• robotresearcher 11y ago
  It's not suffer from retractions, but benefit from them. No one bothers to find errors in weak papers and weak journals don't bother to publish retractions. You would expect more retractions for the best journals because they still have decent standards. Related anecdote: I had a confererence publish a completely plagiarized article of mine, changing only the names of the authors. The paper still contained recognizable photos of my students performing the experiments. I reported this to the confererence and to the IEEE which owned the copyright to our original paper. No action of any kind was taken. Not even a 'knock it off' email.