Negativity bias is the tendency of humans to place more significance on negative events than neutral or positive ones. Negativity bias is an important concept for marketers to understand, because it plays an important role in customer experience management. When a customer perceives something negative about a product or service, it takes more than one positive event to restore balance because humans will naturally place more emphasis on the negative experience. Many psychologists believe that negativity bias evolved as a survival technique. Quite simply, those humans who didn't pay enough attention to negative outcomes were less likely to survive. In business, the same concept can be applied to customer service -- those companies who don't pay enough attention to negative customer outcomes are less likely to survive in the marketplace. Unhappy customers often choose to share their negative impressions with friends and family on social media. It's important for...