Amazon's self-operated business is mainly shipped by domestic Amazon warehouses, and after-sales service is also completed by domestic Amazon. Customers do not need to pay additional taxes and overseas shipping costs during the shopping process.

Amazon's overseas purchases implemented by Amazon China are actually just a price reduction promotion strategy. The price is lower than Amazon China but higher than other overseas Amazons. Customers need to cooperate in completing customs clearance procedures during the shopping process and pay taxes and fees in accordance with relevant laws and regulations. In addition, they have to pay additional shipping costs from overseas warehouses to domestic warehouses.

Amazon's self-operated business is a mature business, and its growth rate is similar to that of the entire e-commerce market. At the same time, the influx of third-party sellers will slow down because Amazon's self-operated business has already occupied a large part of the market.

Despite this, Amazon's growth rate is still higher than its peers. Amazon's total sales in the United States in 2019 will account for 47% of the total e-commerce sales in the United States, making it the largest e-commerce platform in the United States.