Narcissism is the tendency to view one’s own culture or group as superior to others is a false statement.
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Explanation:
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It is not true that narcissism is the tendency to view one’s own culture or group as superior to others. Ethnocentrism is the term that denotes this kind of behavior. This is the term that refers to a positive attitude about one group or culture with a negative attitude towards another group or culture.
The person with a narcissistic personality disorder will have the characteristics of feeling themselves superior to others and insult them, do things to impress others.
Interpersonal skill would be the answer you are looking for.
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Edit
Decision making should also be one of them.
Answer:
The price would increase.
Explanation:
Basic economics, if the amount of supply you are trying to sell, for example pillows, decreases but the demand for the pillows stays the same, then you can charge more for each pillow because you have less to sell, making the pillows rare.