Figure10A-16Income and Consumption: Normal Goods At a monthly income of $2400, Ingrid chooses bundle A, consisting of 8 rooms and 40 restaurant meals. When relative price remains unchanged, a fall in income shifts her budget line inward to BL₂. At a monthly income of $1200, she chooses bundle B, consisting of 4 rooms and 20 restaurant meals. Since Ingrid’s consumption of both restaurant meals and rooms falls when her income falls, both goods are normal goods.