This interview originally ran on CNBC on April 21, 2020. 

U.S.-listed Pinduoduo (PDD) may not be a big name outside of China. But within the world’s second-largest economy, the e-commerce firm is growing faster than major rivals Alibaba and JD.com and gaining share quickly.

Behind that success has been its “social shopping” model that encourages users to share links to items they purchase with friends and participate in group buying.

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