IMK Titegrafik des Instituts

: IMK Team

The IMK has 13 permanent research positions. The researchers cover a wide range of macroeconomic topics as well as econometric methods and have extensive experience in empirical research. They are supported by the director's office and by assistants.


In addition, the IMK employs short-term interns. Each year the IMK's doctoral programme offers one scholarship for a dissertation related to one of the institute's projects, and external researchers are invited to visit the IMK. The team gladly answers any questions concerning macroeconomic policy issues. Just write to IMK[at] or directly to the individual researchers, whose e-mail addresses all follow the same pattern: firstname-surname[at]


Prof. Dr. Sebastian Dullien

Research Director

Born 1975. From 1994 studies at Ruhr-Universität Bochum und Freie Universität Berlin. 1997-1998 University of Paris IX-Dauphine, studying International Economics. 2000 Diplom in economics (equivalent of M.A.), Freie Universität Berlin 2000-2002 Leader writer at Financial Times Deutschland. 2003 PhD (Economics) at the Freie Universität Berlin on “Interaction of Monetary Policy and Wage Bargaining in EMU - Determination of Employment and Output in an Endogenous Money System”. 2002-2007 Economics correspondent at the Financial Times Deutschland. 2011-2019 Senior Policy Fellow at the European Council on Foreign Relations. Since October 2007 Professor for International Economics at the HTW Berlin - University of Applied Sciences (former name: FHTW Berlin). Since 2019 Research Director at the Macroeconomic Policy Institute (Institut für Makroökonomie und Konjunkturforschung) of the Hans-Böckler Foundation.



Dr. Andrew Watt


Born 1963 in Great Britain, studied economics and modern languages at the University of Surrey (1982-1986 BSc), political science at the Otto-Suhr Institute of the Free University of Berlin (1987-1990), Master Advanced European Studies at the University of Basel, Switzerland (1997-1999, MA), Doctoral program at the London School of Economics und the University of Hamburg (to be finalised 2013). 1990-2000 responsible for English language publications at the Deutsches Institut für Wirtschaftsforschung (DIW) und the Wissenschaftszentrum Berlin für Sozialforschung (WZB), 2000-2012 senior researcher at the European Trade Union Institute (ETUI) in Brussels, latterly coordinator of the research unit 'Economic, social and employment policies' and as Chief economist of the research institute of the European trade union movement responsible for analyzing European economic and employment policies and for comparative European socio-economic research. Since August 2012 head of the Macroeconomic Policy Institute (IMK) Department of the Hans-Böckler Foundation, responsible for the operative management of the Institute. Consultant and adviser to numerous bodies (incl. European Commission, European Economic and Social Council, Party of European Socialists, Foundation for European Progressive Studies, Member of the Economic Policy Advisory Council to the Chairman of the German SPD). Courses taught at the University of Bielefeld and the University of Applied Sciences BFI, Vienna. Regular columnist and blogger for the Social Europe Journal.

Publications (pdf)


Peter Hohlfeld

Senior Economist
National accounts

Born in 1959, vocational training as banker at Deutsche Bank AG, studies of economics at the University of Essen, economist at Hamburgische Landesbank, Hamburg, research fellow at the Institute of European Economic Studies of the Unversity of Wuppertal, economist at the Ministry of Economy of North Rhine-Westphalia, 1993-2005 research fellow at the RWI Essen (business cycle and growth, foreign trade, European integration). Since September 1st, 2005 research fellow at the Macroeconomic Policy Institute (IMK) at the Hans-Böckler-Foundation.

Publications (pdf)


Sabine Nemitz

Management and communication


Dr. Thorsten Schulz-Walden

Organisation and Research Management


PD Dr. Sven Schreiber

Senior Economist
Macroeconomic fundamental Research

Sven Schreiber (born in 1971) studied economics at the Free University Berlin and the Universidad Autónoma de Madrid. After serving as a junior fellow from 1998 through 2002 he received a doctorate in economics from the Free University Berlin. From 2003 until 2008 he was an Assistant Professsor at Goethe University Frankfurt-upon-Main, where he was awarded the Habilitation in economics and econometrics. He joined the IMK as a Senior Economist in 2008.



PhD Ulrike Stein

Senior Economist
Econometric modelling, economic policy advice

Born 1973, Degrees: Master's Degree (International Economic Studies und Quantitative Economics), MSc in Economics and PhD in Economics. 1996-2001: Studies at Maastricht University (NL) and University of Warwick (UK); 2001-2005: Warwick Postgraduate Research Fellowship at the University of Warwick; 2001-2005 teaching assistant at the University of Warwick (Economic Statistics and Econometrics, Microeconomics); 2002-2006: Grant from the Economic and Social Research Council (ESRC) (UK); 2008: PhD in Economics at University of Warwick (Title: "Essays on non-wage aspects of work and utility interdependence"); Since March 2010: Senior Economist at the Macroeconomic Policy Institute (IMK) in the Hans-Böckler Foundation for economic policy advice and model simulation.

Publications (pdf)


Dr. Sabine Stephan

Senior Economist

Born in 1967, 1988-1996 media and film studies, political science at the Free University of Berlin, degree: Magister Artium (1996), 1991-1999 studies of economics at the Free University of Berlin, degree: Diplom-Volkswirtin (1999), 1999-2005: research associate at the DIW Berlin, 2000-2002: numerous short-term assignments to Vietnam, Laos and Jordan for the gtz (the German government's aid agency), since June 1st, 2005 senior economist at the Macroeconomic Policy Institute (IMK) at the Hans-Böckler Foundation.

Publications (pdf)


Dr. Silke Tober

Senior Economist
Monetary policy

Born in 1964, 1981-1990 studies of economics at Marburg University, the New School for Social Research (New York) and the Free University of Berlin (FU Berlin), student assistant of Professor Hajo Riese (FU Berlin), economic research for Norbert Wieczorek, member of the German parliament, degree: Diplom-Volkswirtin (1990). 1990-1991: Researcher for Norbert Wieczorek, 1991-1993: research associate in the project "The transformation of planning economies into market economies - with special regard to the labour market and the balance of payments" at Social Science Research Centre Berlin (WZB), 1994-2000: research associate at Halle Institute for Economic Research (1994-1996: central and eastern Europe, 1996-2000: monetary policy, international business cycle analysis), 2000-2005: senior economist (monetary policy) at the DIW Berlin, since July 1st, 2005: senior economist at the Macroeconomic Policy Institute (IMK) at the Hans-Böckler Foundation.

Publications (pdf)


Dr. Thomas Theobald

Senior economist
financial markets

Thomas Theobald (born in 1981) has studied mathematics (Dipl.-Math.) and economics (B.Sc.) at Goethe University Frankfurt from 2004 to 2010. Before that he became a trained bank clerk at Landesbank Rheinland-Pfalz and while studying he worked part time in the audit and risk management department at Landesbank Baden-Württemberg. In May 2010 he started his graduation at FU Berlin within a doctoral program of the IMK in the HBS. Since April 1st, 2014 senior economist for financial markets at the Macroeconomic Policy Institute (IMK) in the Hans-Böckler Foundation (HBS).

Publications (pdf)


Dr. Katja Rietzler

Senior economist
Tax and fiscal policies

Born in 1965, 1986 – 1993 studies of economics and Russian at Munich University and FU Berlin, semester in Moscow in 1990/91, degree: Diplom-Volkswirtin in 1993 (at FU Berlin); 1994 – 1995 auditor for BDO Deutsche Warentreuhand AG, assignments in Germany, Russia and Uzbekistan, 1996 – 1998 management of the EU project “Kazakhstan Economic Trends” on behalf of DIW Berlin, 1999 – 2005 researcher at the department of macro analysis and forecasting of the DIW Berlin (focus: euro area), 2005 doctoral degree at FU Berlin (Professor Wolters), 2005 – 2007 senior economist at the Macroeconomic Policy Institute (IMK) (management and external funding); 2008 – August 2012 self-employed economist and economic consultant in Hanover and Berlin (Rietzler Economics), since September 2012 senior economist (tax and fiscal policy) at the IMK.

Publications (pdf)


Christoph Paetz

Tax and fiscal policies

Christoph Paetz (born 1988) studied economics at the Berlin School of Economics and Law from 2009 to 2014. Since 2015 he is doing his PhD at the University of Duisburg-Essen. From 2015 to 2019 he was in a doctoral programme at the Macroeconomic Policy Institute (IMK) in the Hans-Boeckler Foundation. In 2019 he was research associate in the Labour Economics Unit at the IMK before joining the Tax and Fiscal Policy Unit in November 2019. Research and study visits at the Craig School of Business, California State University, and the New School of Social Research in New York. Christoph’s work focuses on tax and fiscal policies, fiscal rules, and macroeconomic performance.


PhD Alexander Herzog-Stein

Senior Economist
Labour Economics

Born 1971; 1996-2001: Studies at Maastricht University (NL) and University of Warwick (UK), Degrees: Master's Degree (International Economic Studies und Quantitative Economics), MSc in Economics and PhD in Economics; 2001-2005: Warwick Postgraduate Research Fellowship at the University of Warwick; 2001-2005 Teaching assistant at the University of Warwick; 2002- 2005: Grant from the Economic and Social Research Council (ESRC) (UK); September 2006: PhD in Economics (Title: "The Economics of Third-Party Involvement"); 2005-2009: Scientific-Staff Member of the German Council of Economic Experts; 2009 - 2012: Head of unit "Labour Market and Working-Time Research" at the Institute of Economic and Social Research (WSI); Since November 2012: Head of unit “Labour economics” at the Macroeconomic Policy Institute (IMK). Since 2012: Lecturer at the University of Koblenz-Landau.


Dr. Sebastian Gechert

Tax and fiscal policies

Sebastian Gechert (born in 1983) studied economics and business administration at Chemnitz University of Technology from 2003 to 2008. He received his PhD (Dr. rer. pol.) from Chemnitz University of Technology in 2014 with a dissertation on fiscal multipliers. From 2008 to 2012 he worked as teaching and research assistant at Chemnitz University of Technology before joining the IMK in October 2012. Several research and study visits at IWH Halle, IMK and Levy Economics Institute of Bard College. Sebastian's work focuses on the impact of fiscal policy on economic activity and distribution, and the design and impact of fiscal rules.

Publications (pdf)


PD Dr. Sebastian Watzka

European cyclical analysis and economic policy in Europe

Sebastian Watzka, born 1979, studied economics at Cambridge University. He received his PhD in economics at the European University Institute (EUI) in 2007 and was afterwards working as assistant professor at the Seminar for Macroeconomics at LMU Munich, interrupted by interim professorships at TU Dresden (summer 2014) and HU Berlin (winter 2014/15). In November 2016, he was awarded the Habilitation in economics at LMU. He joined the IMK as Senior Economist in March 2017.

Publications (pdf)


Dr. Jan Behringer

Tax and financial policy

Jan Behringer, born 1986 in Heidenheim. From 2005 to 2011 he studied International Economics (Diploma) at the Eberhard Karls University Tübingen. From 2008 to 2011 student assistant at the Institute for Applied Economic Research (IAW) in Tübingen. Since April 2012 PhD student at the Julius-Maximilians-University of Würzburg and in the PhD program of the IMK in the Hans-Böckler-Foundation. Research and study visits at the University of St. Gallen, the Bavarian Graduate Program in Economics (BGPE) and the Center for Monetary and Financial Studies (CEMFI) in Madrid.



Hatice Karaca 
Office of the Director

Sabine Kurzböck 

Pia Korn
Assistance and information management

Martina Gitzel
Assistance and information management

Svenja Berger
Assistance and information management