Consumer cognitive bias refers to the tendency of individuals to make decisions and judgments based on their own subjective beliefs and perceptions, rather than objective facts or evidence. These biases can influence how consumers interpret information, evaluate products and services, and ultimately make purchasing decisions. Examples of consumer cognitive biases include confirmation bias, where individuals seek out information that confirms their existing beliefs, and the halo effect, where a positive impression of one aspect of a product or brand influences overall perception. Being aware of these biases can help consumers make more informed and rational choices when it comes to their consumption habits.