Yes, there is scads of research out there about how certain groups are perceived with a negative bias.

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Our research indicates that during the past five years, the first week of a five-week expiration cycle has had a negative bias.

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Our theory as to why this particular week has a negative bias is related to those looking to add portfolio insurance via the purchase of options on indexes and exchange-traded funds.

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Foreign journalists had been called to attend a meeting in February entitled "Honest and accurate reporting" by the information minister in order to be berated on what the government here perceives to be a negative bias in coverage of Nigerian affairs.

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In investing, a negative cognitive bias can take many forms.

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What I am suggesting is that sometimes, the when a negative event happens, investors overreact, throwing the baby out with the bathwater, and the collective negative cognitive bias often pushes a stock down by more than what the bad news and all its implications should result in.

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After controlling for self-selection bias, the impact of PBC on reliability shifted from negative to strongly positive.

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Next time you hear a CEO dismiss a negative research report, take the trouble to investigate whether the analyst really did either display bias or make a rookie error.

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