Because the price itself is set by the merchant. There are many reasons for the price difference. For example: brand differences, manufacturers differences, sales platform differences, product authenticity and so on, these differences will lead to consumers' choice tendency, and these tendencies are the main reasons for price differences.

Because Taobao has fakes and refurbished goods, the price difference will naturally be large. JD.COM Mall generally provides invoices, which are taxable. Taobao generally has no invoice, which is the price difference.

Extended data:

JD.COM and Taobao have the same thing to the price difference:

The price difference sometimes manifests as a premium, and sometimes it is a premium. Hedging profit is a kind of market trading method that makes use of the price difference between futures contracts to make profits. The key factor of arbitrage is the change of price difference.

The spread will expand and shrink, but when the spread between two futures contracts is abnormal, it provides an arbitrage opportunity for traders. The difference in price is related to profit. The real difficulty for arbitrageurs is how to capture the biggest difference in prices under the same trend.