商业是商品经济发达的形式,它在社会再生产过程中起着重要的作用。在现实的经济生活中,商品从生产到批发,又从批发到零售,再从零售到达消费,这是商品流通过程必不可少的环节。商业作为联结城乡之间、地区之间商品流通的纽带,作为产地与销地、生产与消费的中间环节,在客观上就要求它有一定数量的商品储备。商品储备的周期和数量,是随着生产和消费的发展、供应区域的变化和交通运输等条件的变化而变化 Business is a well-developed commodity economy that plays an important role in social reproduction. In the real economic life, commodities from production to wholesale, from wholesale to retail, and then from retail to consumption, are indispensable links in the process of commodity circulation. Business as a link between urban and rural areas, the circulation of goods between regions, as an intermediate point of origin and sales, production and consumption, objectively requires it to have a certain amount of product reserves. The cycle and quantity of commodity reserves change with the development of production and consumption, changes in the supply area, and changes in transportation