In the December 2020, the European Commission has presented its proposal for a Digital Market Act (DMA) aiming at promoting competition and preventing unfair practices on digital markets. The DMA creates a new category of platforms, "gatekeepers'', based on criteria relative to their turnover...

An increasing number of research, especially in law, are pointing out the difficulties of the neoclassical paradigm in studying the economy of digital platforms. Some of them propose to shift from the neoclassical paradigm to a complexity paradigm, especially to deal with antitrust issues....