Healthcare needs have been growing rapidly in many countries as populations age. Recently, ecosystems with online platforms at their center have emerged to address this need. This is because these platforms can scale rapidly, increasing healthcare access and equity. The speed of scaling depends...

Platforms refer to intermediaries that facilitate economic interaction between two sets of agents wherein the decisions of one set of agents is likely to have an effect on the other via direct and/or indirect externalities. Given their nature, platforms need to find the appropriate balance...

We empirically examine the effectiveness of referral marketing and price promotion in generating sales in a large e-commerce platform. Our results show that although referral marketing increases sales, its effect is attenuated by price promotion. We argue that price promotion arouses quality...