A bias is sometimes defined as a violation of a normative standard. For example, the fact that people will be less likely to trade an object they are endowed with for another one-regardless of which initial object they possess-violates the normative standard that preference for an object should not be swayed by what is already possessed. | A bias is sometimes defined as a violation of a normative standard. For example, the fact that people will be less likely to trade an object they are endowed with for another one-regardless of which initial object they possess-violates the normative standard that preference for an object should not be swayed by what is already possessed. |