1.quantity demand goes down.
2.substitution effect and income effect.
3.then demand will go down.
4.the goods price by consuming less of that good and more of other goods.
5.price and how many per day.
1.because the population increases.
2.because most of the other things are held constant.
3.a product or good that consumers demand more of when their incomes increase.
4.because how is needed and how much people are buying.
5.ski boots, skis, snowboards