Wholesale Price Discrimination in Global Sourcing: Field Evidence from Alibaba
37 Pages Posted:
Date Written: November 26, 2018
Past research has found price discrimination in business-to-consumer (B2C) markets, where buyers are end customers. There is limited study on suppliers' price-quoting behaviors and price discrimination in business-to-business (B2B) markets. It is unclear whether certain characteristics of B2B buyers, who are often representatives of firms and not end customers, would influence suppliers' pricing decisions. In this research, we investigate whether wholesale price discrimination exists, by conducting randomized field experiments on Alibaba.com, the world's largest online global-trade platform. We find that there is no significant difference in the wholesale prices quoted to buyers selling in US and South African markets. We also find that suppliers quote significantly higher wholesale prices to White buyers than to Asian and Black buyers regardless of country. However, price discrimination disappears when buyers present market information to suppliers, providing the lowest wholesale price offered by other suppliers in the market, whereas price discrimination remains when buyers present social information to suppliers, indicating the buyer is recommended by a previous customer. We also find that market information can help buyers obtain a lower wholesale price because it signals a lower willingness to pay. Social information, however, can reduce price quotes for only black and white buyers, but not for Asian (particularly Chinese) buyers, possibly due to distrust between Chinese sellers and buyers.
Keywords: Price Discrimination, B2B Marketplace, Global Supply Chain, Market Information, Social Information
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