Mathias joined the research group in August 2019. He holds a doctoral degree from the Ruhr Graduate School in Economics and TU Dortmund University. After obtaining his PhD, he worked for three years as post-doctoral researcher at the German Institute for Economic Research (DIW Berlin).

Mathias’s main research interest are macroeconomics and macroeconometrics with a particular focus on fiscal and monetary policy, private credit cycles, and financial frictions. Mathias is currently working on how the financial cycle affects the monetary policy transmission mechanism. In another project, he is investigating whether fiscal policy is more effective in stimulating the economy in times when monetary policy is constrained by the zero lower bound on nominal interest rates. Furthermore, he is also studying whether the level of aggregate uncertainty impacts on how fiscal policy interventions transmit to the economy.