Prof. Dr. Johanna Arlinghaus is Assistant Professor of Economics and Sustainability at the Hertie School and a Senior Associate at Oxford Net Zero. She is also affiliated with the Smith School of Enterprise and the Environment, and the Institute for New Economic Thinking at the University of Oxford, as well as with the Mercator Research Institute on Global Commons and Climate Change in Berlin. Johanna is an environmental economist with a focus on fiscal and climate policy, with a particular focus on the workings of different policy instruments to support emissions mitigation and carbon dioxide removal. Methodologically, she uses econometric methods for causal inference and large micro-level datasets to evaluate policies. Johanna completed her PhD in Economics at TU Berlin and the Mercator Research Institute on Global Commons and Climate Change, and she worked as an economist at the OECD Center for Tax Policy and Administration for more than four years prior to her PhD. While at the OECD, she designed and led projects on energy and carbon taxes, and emissions trading systems, in close exchange with national policy makers. Johanna holds a BSc degree in Economics from Maastricht University, and an MPP from the Hertie School.