Christoph Müller is a researcher at the Eurac Research Institute for Comparative Federalism focusing on digital transformation. Müller teaches EU law at the Sigmund Freud University Vienna and sustainable development policies at the Vienna University of Economics and Business as well as at the FH Campus Wien–University of Applied Sciences. He studied law at the Universities of Innsbruck and Vienna and received his PhD in law from the University of Vienna. His background includes positions at the Austrian Ministry of the Environment, the Permanent Representation of Austria to the EU, and the Federal Chancellery, where he was responsible for the conception, the coordination, and the negotiation of sustainable development, environment, energy, climate change, and transport laws and policies at the national, EU and global levels.