Bettina Brüggemann

I am an Assistant Professor of Economics at McMaster University in Hamilton, Ontario, where I moved after my PhD at the GSEFM at Goethe University Frankfurt. Alex Ludwig was part of my PhD committee. My research interests broadly lie in quantitative macroeconomics, with applications to the role of taxes in heterogeneous agent models, entrepreneurship, and (female) labor supply across countries and over time.

Christopher Busch

I am an assistant professor at Universitat Autònoma de Barcelona, a research fellow at MOVE, and an affiliated professor at the Barcelona GSE. Before moving to Barcelona, Alex Ludwig was part of my PhD committee at the University of Cologne.
In my research I use parametric and non-parametric empirical methods together with quantitative structural models to address questions of labor income dynamics, insurance against income risk, and labor market mobility from a macroeconomic perspective.

Christian Geppert

I am a senior researcher at the Netherlands Institute for Social Research (SCP) in The Hague. As part of the research programme Scarcity, Social Welfare and Well-being I currently focus on ex-ante policy evaluation using microsimulation and other (quantitative) methods. Before joining the SCP, I worked in the Directorate for Employment, Labour and Social Affairs of the OECD in Paris and as a (post-doctoral) researcher in economics at Goethe University Frankfurt and University of Cologne. In 2015, I completed my doctorate on macroeconomic effects of demographic change at Goethe University Frankfurt under the supervision of Alexander Ludwig.

Nils Grevenbrock

I am a Max Weber Research Fellow at the European University Institute (EUI) in Florence. Before moving to Italy I worked at the Research Department of Deutsche Bundesbank. I completed my PhD at Goethe University Frankfurt in 2018. Alex Ludwig was my PhD supervisor and is co-author of several papers. My research focuses on questions concerning optimal taxation and portfolio choices of households.  Methodologically, I mainly work with structural dynamic heterogenous agent models and micro survey-data.  

Max Groneck

I am an assistant Professor at the University of Groningen.
My research interests are on household economics, especially old-age related risks, health-related topics and saving puzzles, as well as behavioral Macro. I mostly work quantitatively using micro-data and structural dynamic heterogeneous household models.

Daniel Harenberg

I am a Senior Economist in the European team of Oxford Economics Ltd. I am currently also affiliated to the economics department of ETH Zurich as an Associate Researcher, and to the Research Center Sustainable Architecture for Finance in Europe (SAFE) of Goethe University Frankfurt as a Research Affiliate. My academic research interests lie at the intersections of Macroeconomics, Computational Economics, Financial Economics, and Economic Demography. Alexander Ludwig and I have published several papers on these topics.

Klaus Härtl

I wrote my thesis on "Fostering Sustainability in Times of Aging: Pension Policies and Household Behavior in a Macroeconomic Setting" at the Munich Center for the Economics of Aging (MEA) at the Max Planck Institute for Social Law and Social Policy.  Alexander Ludwig was my second supervisor and is coauthor of several papers. My dissertation analyzed the impact of pension policies on household behavior and macroeconomic variables during demographic change applying various life-cycle models in an overlapping generations framework. I currently work as an Economist at a German bank that specializes in real estate and public sector financing.

Alexander Hochheim

I graduated with a master’s degree in Econometrics, Operations Research and Actuarial Studies from the University of Groningen. During my bachelor studies in Frankfurt, I worked for Alexander Ludwig as a student research assistant. He also was the supervisor of my bachelor’s thesis about intergenerational mobility in the United States. My interests lie in the areas of econometric theory and methods, quantitative analytics, and data science. From autumn 2022 I will be working in Oslo as a data scientist or quantitative analyst.

Anne Jensen

I graduated with a master's degree in International Economics and Economic Policy from Goethe University Frankfurt. During this time, I worked for Alexander Ludwig as a student research assistant. He also supervised my master's thesis, which dealt with the distributional effects of the German statutory pension system. Starting in fall 2022, I will be working as a consultant in Frankfurt.

Zhao Jin

I wrote my PhD thesis on the topics of taxation, human capital formation and intergenerational mobility. Alexander Ludwig was my supervisor and guided me throughout my doctoral studies at the GSEFM, Goethe University Frankfurt. We are also coauthors on a joint paper with Nicola Fuchs-Schündeln and Irina Popova. In my research I mainly worked with structural macroeconomic models and national data sets. In June 2021 I joined Bain & Company as a consultant, where I continue to apply my analytical and quantitative skills.

Link to personal website

Wolfgang Kuhle

I wrote my thesis on "Intertemporal Allocation with Incomplete Markets" at the macroeconomics unit of the MEA Institute in Mannheim, which, at the time, was headed by Alexander Ludwig. My research on overlapping generations has since appeard in the Journal of Mathematical Economics, the Journal of Macroeconomics, and the Journal of Population Economics. Currently, I work on public and private information games at the Max Planck Institute for Research on Collective Goods in Bonn.

Robert Tjarko Lange

I am a Graduate Student in Machine Learning at the Imperial College London. I first met Alexander Ludwig at the University of Cologne and got fascinated by life cycle modeling and his lectures on public policy. Afterwards, I joined the Center of Macroeconomic Research as a student research assistant to Professor Ludwig and Professor Helge Braun. Under the supervision of Nils Grevenbrock I contributed to a research project that dealt with potential moral hazard problems at the intersection of unemployment and retirement insurance. While analyzing large panel datasets (e.g. PSID, HRS, CPS), I quickly found my passion for the computational aspects of inference and high-dimensional statistics. Since then I have diverged from my original path and have focused on Data Science and interdisciplinary applications of approximate Bayesian Inference. My main research interests focus on Hierarchical Reinforcement Learning and episodic memory. In October 2018 I will join the Einstein Center for Neurosciences Berlin as a PhD fellow.

Matthias Schön

I am currently working in the Deutsche Bundesbank’s economics directorate. I am in charge of developing an Overlapping-Generation-Model which is used for analysis of sustainability questions of social security systems as well as for impact assessment of policy tools. Alex Ludwig was my PhD supervisor at the University of Cologne and is my co-author of several papers. My current research lies at the cross road of macroeconomics, labor and health economics. Methodologically, I work quantitatively using micro-data and structural dynamic heterogeneous agent models.

Edgar Vogel

I am currently heading a team in the Deutsche Bundesbank’s financial stability directorate. The team is responsible for developing analytical tools for the analysis of financial stability questions as well as for impact assessment of policy tools. Prior to taking up this position, I worked in the Bundesbank’s Macroprudential Policy Division. My post-academic professional career started in the European Central Bank in 2011, where I worked in several directorates. Before that I completed my PhD-thesis at the MEA in Mannheim entitled “Human Capital Investment and Population Dynamics”. Alexander Ludwig was my mentor and co-author of several papers. My older research interests focus on questions around population ageing, human capital and growth.  More recently, I ventured into modelling the observed income- and wealth distribution and quantify effects of fiscal policy on welfare as well as into identifying the build-up of risks within the household sector and modelling the effects of borrower based instruments on the risk outlook and more broadly, on the macroeconomy. Methodologically, I mostly rely on structural models in a traditional life-cycle setup.