就整个国家(或地区)来说,生产的东西,不管谁买了都是用于固定资产投资、库存增加或消费。另一方面,只要有人买,就同时发生了收入和支出。因此,生产=支出=收入。这称之为国内生产总值的三面等价原理。GDP 从这三个方面来进行统计和计算,生产了多少,如何使用,成为了谁的收入,整个国家和地区的经济活动便一目了然。 For the entire country (or region), what is produced, no matter who buys it, is used for investment in fixed assets, inventory increases or consumption. On the other hand, as long as someone buys, both income and expenses have occurred. Therefore, production = expenditure = income. This is called the three-sided equivalent principle of gross domestic product. From these three aspects of GDP statistics and calculations, how much production, how to use, who became the income, the economic activities of the entire country and region will be clear at a glance.