How did Shopee – a small e-commerce player launched in 2015 – overtake its historic rival Lazada in just a few years to average 281 million visits a month and become the most valuable company in South East Asia in 2021? CEO Forrest Li followed a bold two-sided digital marketing strategy that won over sellers (B2B) and users (B2C).

Social commerce is a new trend in e-commerce that leverages individual relationships and affiliations to drive growth in online sales. The case compares two companies, Pinduoduo and Facebook/Instagram, and their different social commerce business models, notably social network based vs. social group based models.

On 30 May 2017, Amazon shares traded at a record high - above $1,000 - surpassing the share price of Google parent Alphabet. Started as an online bookstore 22 years earlier, Amazon has achieved uninterrupted growth by becoming the largest internet bookstore, the largest online marketplace, a media company, and the most successful IT service provider.

After 18 months of attempting to transition the company to holacracy, Tony Hsieh, Zappos’ celebrity CEO, decided it was time to make the change happen. In March 2015, he sent an email to all Zappos employees offering them 3 months’ severance pay if they felt that self-management was not for them.