Digital innovation is giving rise to new business models. Uber and Airbnb are household names today, when not so long ago we were all learning about the sharing economy. The regulations don’t always evolve as quickly as technological change — at least that’s the perception. So what should policy makers and regulators do? Wharton Professor Kevin Werbach shares his insights into that question. Often, there’s lots of legacy in regulation, and some of it is regulators’ fault, and some of it is the fault of, for example, the legislatures that set up the rules. A lot of what we are seeing in these markets is the need for legislative change, for governments to change the structure of the rules, because the rules use terms that no longer make sense, or they have categories that no longer make sense.