eBay has built a new business model based on the e-commerce platform, providing buyers with a convenient, affordable and safe consumption platform and creating a brand new marketing environment for sellers. In summary, the transaction process has the following characteristics: The main transaction subjects are natural persons. Currently, eBay users are mainly individuals, self-employed businesses or small industrial and commercial enterprises. To facilitate transactions, these self-employed businesses or small industrial and commercial enterprises are usually registered as natural persons.