According to statistics, the e-commerce market has been growing by 17-18% annually. People are increasingly buying online, which means e-commerce is becoming a profitable investment and an effective business tool. However, traditional online stores are gradually giving way to peer-to-peer marketplace platforms which are gaining incredible popularity. As PwC predicts, the so-called "sharing economy" will have reached $355 billion by 2025.
An online marketplace is a website or app that facilitates shopping from many different sources. The operator of the marketplace does not own any inventory, their business is to present other people’s inventory to a user and facilitate a transaction. eBay is the ultimate example of an online marketplace, they sell everything to everybody. There are many other types.