:the amount of goods and services that are available for people to buy compared to the amount of goods and services that people want to buy供应与需求;供求
If the company produces less of a product than the public wants, the law of supply and demand says that the company can charge more for the product.如果公司生产的产品少于市场需求,按照供求法则公司就可以给产品加价。