商品的价格提高，整体的购买力下降(收入效应)，消费者转向购买相对价格低的商品(替代效应)。

As the price of a commodity rises, overall purchasing power decreases (the income effect) and consumers move toward relatively less expensive goods (the substitution effect).

youdao

商品的价格提高，整体的购买力下降(收入效应)，消费者转向购买相对价格低的商品(替代效应)。

As the price of a commodity rises, overall purchasing power decreases (the income effect) and consumers move toward relatively less expensive goods (the substitution effect).

youdao