Competition law and digital platforms

Today The speaker spoke about the competition law and digital platforms and  explained ,how the digital markets plays role in the platform of economy. The most significant goal of competition law is to shield society from harmful competitive behaviour. She also  explained that the digital services have a unique feature of network effects. which is a product or service gaining additional value as more people use it. That is where   one promotes concentration of markets to products like eBay,Amazon,but at the same time there are multiple routes through which digital services can be delivered to the end user. She also discussed about the market structure and why they are in  need of competition law .She concluded that the dynamic growth of the digital markets has resulted in competition problems by special responsibility doctrine.