जब कोई उपभोक्ता किसी वस्तु से वंचित रहने के बजाय उसके लिए अधिक कीमत चुकाने को तैयार होता है, तो उसे क्या कहा जाता है?

Assertion (A): Giffen goods violate the law of demand. Reason (R): When the negative income effect of a price change outweighs the substitution effect, the law of demand will not hold.

Refusing to purchase products due to social or environmental disapproval, such as avoiding highly polluting vehicles, is referred to as: