Diese Seite bietet Ihnen Informationen über die Forschung und die Veröffentlichungen des ehemaligen Lehrstuhlinhabers und den Mitarbeitenden.
Wir bieten unterschiedliche Datensätze, die durch Forschungsprojekte von Prof. em. Detlef Jahn entstanden sind. Diese können kostenlos heruntergeladen werden (siehe Data Download):
- Parties, institutions and preferences (PIP)
- Agenda-setting power model (ASPM)
- Index of Corporatism
- Comparative Welfare Entitlements Dataset 2 (CWED 2)
- Environmental indicators (heating degree months, HDM)
Professor im Ruhestand Dr. Detlef Jahn
Prof. Jahn ist seit dem 1. April 2022 im Ruhestand.
Ongoing Research, Data & Publications
For more information about ongoing research, (replication) data and the most recent publications please visit our download section.
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Institutional Associations
From April 1999 - present
University of Greifswald; Department of Political Science
Professor of Compartive Politics (C4) Chair
September 2010 - Februar 2011
Södertörn University (Sweden); Centre for Baltic and East European Studies
Visiting Professor
April 2007 - February 2008
Hanse Institute for Advanced Study (Hanse Wissenschaftskolleg)
Research Fellow
Februar bis April 2006
Lincoln University (New Zealand)
Visiting Professor
October 2004 - April 2005
University of California at Los Angeles (USA)
Visiting Professor
February - May 2001
Center for European Studies New York University (USA)
Visiting Scholar
From January 1996 - April 1999
The Nottingham Trent University (permanent position)
Department of Economics and Politics
Research Professor in Political Science
November 1993 - December 1995
University of Göteborg (Sweden)
Visiting Researcher
Post-doctoral Research Scholarship of the DFG
August 1988 - October 1993
University of Paderborn (Germany)
Lecturer
September 1985 - August 1988
European University Institute (Italy)
Research Student
Department of Political and Social Sciences (San Domenico di Fiesole (Florence))
Research Projects
From October 2010 - present
PROJECT LEADER of the research project on:
Parties, Institutions, Preferences (PiP) University of Greifswald.
From October 2009 - December 2015
PROJECT LEADER of the research project on:
Welfare State Policy in Europe (DFG).
From October 2009 - March 2015
PROJECT LEADER of the research project on:
Impact and Dynamic of Globalization: Modeling Processes of Diffusion in Highly Advanced Societies.
Fritz Thyssen Stiftung.
From October 2007 - February 2009
PROJECT LEADER of the research project on:
Health Policy and Cancer Prevention. Sanofi Pasteur MSD.
From October 2002 - August 2010
PROJECT LEADER of the research project on:
Environmental Problems as a Global Phenomenon. (DFG).
From January 2004 - December 2007
PROJECT LEADER of the research project on:
Patterns of Democracy and Political Performance in Central Eastern Europe (DFG); (Together with Prof. Müller-Rommel, University of Lüneburg).
From January 1997 - December 2000
PROJECT LEADER of the research project on:
Environmental Progress of Industrial Societies
Nottingham Trent University.
From September 1997 - December 2001
PROJECT LEADER of the Research Project on:
Electoral Rhetoric in Great Britain and the USA. Research Enhacement
Fund of the Nottingham Trent University.
From May 1994 - December 1995
PROJECT LEADER together with Professor Esaisson from the University of Göteborg (Sweden) of the Research Project
Electoral Rhetoric in Sweden and Germany.
Swedish Humanistic Research Council (HSFR).
January 1990 - June 1994
PROJECT LEADER of the Research Project on:
„The Institutionalization of Ecological Issues in Modern Societies”
Sponsored by the Swedish Council for Planning and Coordination of Research (Forskningsrådsnämnden,FRN).
January 1990 - December 1994
PROJECT LEADER of the Research Project on: „Die
Lernfähigkeit von Organisationen in modernen Industrie- gesellschaften”
Ministry of Research and Technology of the Federal Republic of Germany (BMFT).
Associate
From 2005 - present
Regional Coordinator and Board Member of the Bertelmann
Sustainable Government Index (SGI)
From January 2008 - December 2011
The Nordic Model of Democracy (Nicholas Aylott) Swedish
Jubiliums Bank Foundation.
From January 2003 - December 2008
Governing a Common Sea (Marko Joas); Finish Academy of
Science
Member of Research Reseach Councils
- Board Member of the Bertelsmann Sustainable Government Index (SGI)
- Advisory Board of the Center of Excellence (Democracy: A Citizen Perspective); Åbo Uni., Finland
Honors
- Fellowship at the Kolleg-Forschergruppe “The Transformative Power of Europe” at the Free University Berlin, October 2011-September 2012 and October 2015-September 2018.
- Fellowship at the Hanse Wissenschaftskolleg, from April 2007-March 2008.
- Visiting Fellowship in Reshaping Australian Institutions, The National Australian University,
- Post-doctoral research scholarship (Habilitationsstipendium), DFG; 1993-1996.
- Scholarship Swedish Institute as Visiting Researcher at the University of Göteborg, 1988-1990.
- Scholarship from the European University Institute as Research Student, 1987-1988.
- Scholarship from (DAAD), Research Student at the European University Institute, 1985-1987.
- Scholarship from the University of Edinburgh as Post-Graduate Worker 1983-1984.
Referee for articles submitted to:
Journals:
- American Journal of Political Science
- American Political Science Review
- American Sociological Review
- International Organization
- World Politics
- European Journal of Political Research
- British Journal of Political Science
- Comparative Political Studies
- Socio-Economic Review
- Electoral Studies
- European Political Science Review
- International Political Science Review
- Government and Opposition
- Party Politics
- European Union Politics
- Government and Policy
- Political Communication
- Politische Vierteljahresschrift (PVS) (Major German Political Science Journal)
- Zeitschrift für vergleichende Politikwissenschaft – ZfVP (Comparative Governance and Politics)
- Swiss Political Science
- Environmental Politics
- Global Environmental Politics
- Environment & Planning
- Climate Policy
- Journal of Baltic Studies
- Österreichische Zeitschrift für Soziologie (Austrian Journal of Sociology)
Publishers:
- State University of New York Press (SUNY)
- Routledge
Research Councils:
- Board Member of the Bertelsmann Sustainable Government Index (SGI)
- Advisory Board Member of the Center of Excellence (Democracy: A Citizen Perspective) at Åbo Akademi, Finland
- Referee for the German Research Foundation (DFG)
- Referee for the German Academic Exchange Service (DAAD)
- Referee for the Australian Research Council
- Referee for the Netherlands Organisation for Scientific Research (NWO) (Vici programme)
- Referee for the Icelandic Research Fund
- Referee for Swedish Research Council
Languages
- German (native)
- English (fluent)
- Swedish (reading)
- Italian (basic)
- Spanish (basic)
- Dutch (basic)
Parties, Institutions and Preferences (PIP)
Wohlfahrtsstaatliche Politik im erweiterten Europa (Welfare state policy in an expanded Europe)
Gesundheitspolitik und Krebsprävention - Modellfall Cervixkarzinom (Health policy and cancer prevention - cervix carcinoma as a model case)
Demokratiemuster und Leistungsbilanz politischer Systeme in Mittel- und Osteuropa (Patterns of Democracy and government performance in Central and Eastern Europe)
Sustainable Governance Indicators 2009
Lehre als Professor für Vergleichende Regierungslehre an der Universität Greifswald
Wintersemester 2020/21
Forschungsfreisemester
Sommersemester 2020
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Politik des Klimawandels (B.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2019/20
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2019
Einführung in die Statistik (Vorlesung)
Environmental Performance and Politics Environmental Performance and Politics (B.A.)
Qualitative Methoden (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2018/19
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Demokratiemuster in der Vergleichenden Politikwissenschaft: Theorie und Empirie (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2018
Environmental Performance and Politics (B.A.)
Forschungslogik (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2017/18
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Demokratiemuster in der Vergleichenden Politikwissenschaft: Theorie und Empirie (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2017
Umwelt und Politik (B.A.)
Forschungslogik (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2016/17
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Staatstätigkeit und Politik (B.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2015
Umwelt und Politik (Lehrforschungsseminar, B.A.)
Qualitative Methoden (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2014/15
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Programmatische Positionen politischer Parteien (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2014
Umwelt und Politik (Lehrforschungsseminar, B.A.)
Qualitative Methoden (M.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Wintersemester 2012/13
Grundlagen der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Parteienregierungen in Europa (B.A.)
Forschungskolloquium Vergleichende Politikwissenschaft (B.A./M.A.)
Sommersemester 2011
Einführung in die Statistik (Vorlesung)
Umwelt und Politik (Lehrforschungsseminar, B.A.)
Colloquium Vergleichende Politikwissenschaft (M.A.)
Sommersemester 2010
Einführung in die Statistik (Vorlesung)
Intra-state Conflict in Comparative Perspective (Lehrforschungsseminar, B.A.; zusammen mit Jesse Lehrke)
Theorie und Empirie von Globalisierungsmechanismen (Seminar, M.A.)
Colloquium Vergleichende Politikwissenschaft (Hauptseminar/M.A.)
Wintersemester 2009/10
Einführung in die Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Staatstätigkeit (Seminar; BA)
Vergleichende Politikanalyse (Colloquium, M.A.)
Sommersemester 2009
Einführung in die Statistik (Vorlesung)
Der Einfluss politischer Institutionen und Konstellationen auf die Staatstätigkeit (Proseminar/BA; zusammen mit Esther Marie Seha)
The Politics of Climate Change (Proseminar/BA; zusammen mit Christoph Oberst)
Colloquium Vergleichende Politikwissenschaft (Hauptseminar/M.A.)
Wintersemester 2008/09
Einführung in die Politikwissenschaft (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Vergleichende Politikanalyse (Colloquium, M.A.)
Sommersemester 2008
Vergleich politischer Prozesse in parlamentarischen und präsidentiellen Demokratien (Proseminar; B.A.; zusammen mit Christoph Oberst)
Theorie und Konzeption von Globalisierungsmechanismen (Hauptseminar; M.A.)
Colloquium: Vergleichende Politikwissenschaft
Wintersemester 2006/07
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Einführung in die Vergleichende Politikwissenschaft (Vorlesung)
Demokratische Staatsverfassung und Staatstätigkeit (Hauptseminar; M.A.)
Colloquium: Vergleichende Politikwissenschaft
Sommersemester 2006
Einführung in das politische System der Europäischen Union (Proseminar; B.A.)
Politische Performanz postkommunistischer Länder (Proseminar; B.A.)
Umweltprobleme in den OECD-Ländern (Hauptseminar; M.A.)
Colloquium: Vergleichende Politikwissenschaft
Wintersemester 2005/06
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Politische Systeme im Vergleich (Proseminar; B.A.)
Politische Entscheidungen und Vetospieler (Hauptseminar, M.A)
Colloquium: Vergleichende Politikwissenschaft
Sommersemester 2005
Forschungssemester finanziert von der DFG
Wintersemester 2004/05
Reguläres Forschungssemester
Sommersemester 2004
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Vergleichende Demokratie- und Umweltforschung (Hauptseminar, M.A.)
Theorien der vergleichenden Politikwissenschaft (Proseminar, B.A.)
Colloquium: Vergleichende Politikwissenschaft
Wintersemester 2003/04
Einführung in die Politikwissenschaft (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Trends in der Aggregatdatenanalyse (Hauptseminar)
Colloquium zu Gegenstand, Methode, Logik und Theorie der vergleichenden Politikwissenschaft
Comparative Environmental Politics (Blockseminar im Rahmen des Sokratesprogramms der Åbo Universität, Finnland)
Sommersemester 2003
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Bildungspolitik: Deutschland in vergleichender Perspektive (Proseminar)
Vergleichende Umweltpolitik (Hauptseminar)
Gegenstand, Logik, Theorie und Methode der vergleichenden Politikwissenschaft (Colloquium)
Wintersemester 2002/03
Einführung in die Politikwissenschaft (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Politische Systeme und Beziehungen im Ostseeraum (Proseminar)
Ansätze in der vergleichenden Politikwissenschaft (Hauptseminar)
Sommersemester 2002
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Das Parteiensystem der Bundesrepublik Deutschland (Proseminar)
Umweltpolitik im internationalen Vergleich (Proseminar)
Qualitative und quantitative Ansätze in der vergleichenden Politikwissenschaft (Hauptseminar)
Wintersemester 2001/02
Einführung in die Politikwissenschaft (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Vorlesung)
Regierungssysteme im internationalen Vergleich (Proseminar)
Der Einfluss verschiedener Demokratiemuster auf die soziale und ökonomische Entwicklung (Hauptseminar)
Comparative Environmental Politics (Blockseminar im Rahmen des Sokratesprogramms der Åbo Universität, Finnland)
Sommersemester 2001
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Wirtschaftliche und soziale Entwicklung in Osteuropa (Proseminar)
Vergleichende Politikwissenschaft in Deutschland (Proseminar)
Klassiker der vergleichenden Politikwissenschaft (Hauptseminar)
Wintersemester 2000/01
Das politische System der Bundesrepublik Deutschland (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Proseminar)
Präsidentschaftswahlen im Vergleich (Proseminar)
Der Forschungsprozess in der empirischen Politikwissenschaft (Hauptseminar)
Sommersemester 2000
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Politik und Gesellschaft in westlichen Demokratien (Proseminar)
Politische Wahlrhetorik und Parteien- und Wahlsysteme in Schweden, Großbritannien, den USA und der Bundesrepublik Deutschland (Hauptseminar)
Der Ländervergleich in der Politikwissenschaft (Hauptseminar)
Wintersemester 1999/00
Das politische System der Bundesrepublik Deutschland (Vorlesung)
Einführung in die Methoden der Politikwissenschaft (Proseminar)
Die Länder des Ostseeraums (Proseminar)
Der Ländervergleich in der Politikwissenschaft (Hauptseminar)
Comparative Environmental Politics (Blockseminar im Rahmen des Sokratesprogramms der Åbo Universität, Finnland)
Sommersemester 1999
Einführung in die vergleichende Politikwissenschaft (Vorlesung)
Einführung in das politische System der Bunderepublik Deutschland (Proseminar)
Umweltpolitik im internationalen Vergleich (Hauptseminar)
Politische Systeme im Ostseeraum (Colloquium)
Wintersemester 1998/99 (Lehrauftrag: Blockveranstaltungen)
Einführung in die politischen Systeme westlicher Demokratien (Frankreich, Großbritannien, USA, Bundesrepublik Deutschland) (Proseminar)
Aspekte der politischen Systeme Skandinaviens (Hauptseminar)
Lehre als Forschungsprofessor an der Nottingham Trent University (1996 bis 1999)
Doktoranden (PhD) Betreuung an der Nottingham Trent University
Lehrveranstaltungen als Gastwissenschaftler an der Universität Göteborg, Schweden (Institut für Politikwissenschaft) (Wintersemester 1993/94 bis Sommersemester 1996)
Sommersemester 1996
Sweden in a Comparative Perspective (Kurs im Rahmen des Erasmusprogramms)
Wintersemester 1995/96
Politics in Europe (Kurs im Rahmen des Erasmusprogramms)
Sommersemester 1995
Politics Swedish Style (Kurs im Rahmen des Erasmusprogramms)
Wintersemester 1994/95
Sweden in a Comparative Perspective (Kurs im Rahmen des Erasmusprogramms)
Sommersemester 1994
The Rise and Decline of the Swedish Model (Kurs im Rahmen des Erasmusprogramms)
Wintersemester 1993/94
Social Structure and Politics in Sweden and Germany (Kurs im Rahmen des Erasmusprogramms)
Lehrveranstaltungen als wissenschaftlicher Mitarbeiter an der Universität -Gesamthochschule- Paderborn (Fachbereich 1, Sozialwissenschaften) (Wintersemester 1990/91 bis Sommersemester 1993)
Sommersemester 1993
Sozialstruktur und Politik in westlichen Demokratien (Proseminar) 58. Ökologische Kommunikation (Proseminar)
Wintersemester 1992/93
Ökologie für Ingenieure (dreistündige Einführungsvorlesung für Elektroingeneure) 60. Gesellschaftliche Diskurse und politische Kommunikation (Proseminar)
Sommersemester 1992
Einführung in soziologische Theorien (Proseminar)
Einführung in die Methoden empirischer Sozialforschung II, (zusammen mit Prof. Dr. Walther Müller-Jentsch) (Proseminar)
Wintersemester 1991/92
Einführung in die Soziologie der Interessenverbände (Proseminar)
Einführung in die Methoden empirischer Sozialforschung I, (zusammen mit Prof. Dr. Walther Müller-Jentsch) (Proseminar)
Sommersemester 1991
Umweltpolitik im internationalen Vergleich (Proseminar)
Angewandte Organisationssoziologie (Proseminar)
Wintersemester 1990/91
Politische Ökologie: Umweltkatastrophen und Technikrisiken als gesellschaftliche und politische Herausforderung (Proseminar)
Angewandte Organisationssoziologie (Proseminar)
Lehrtätigkeit als Gastwissenschaftler der Universität Göteborg, Schweden (Institut für Massenkommunikation)
Winter- und Sommersemester 1989/90
Betreuung einer Diplomarbeit im Fachbereich Massenkommunikation
Lehrveranstaltungen als wissenschaftlicher Mitarbeiter an der Universität -Gesamthochschule- Paderborn (Fachbereich 1, Sozialwissenschaften) (Wintersemester 1988/89 bis Sommersemester 1989)
Sommersemester 1989
Der Prozeß des Organisierens (Proseminar)
Politische Ökologie: Umweltkatastrophen und Technikrisiken als gesellschaftliche politische Herausforderung (zusammen mit Prof. Müller-Jentsch) (Proseminar)
Wintersemester 1988/89
Einführung in die Arbeits- und Wirtschaftssoziologie (Proseminar)
Zur "Politisierung der Produktion": Wertwandel und Ökologiepolitik als Herausforderung moderner Gesellschaften? (Proseminar)
In the spring of 1999 I was appointed as one of the at that time three professors at the newly established Department for Political Science at the University of Greifswald. After finishing a vocational training I started studying Sociology and Political Science in 1978 at the University of Duisburg. I received my M.A. degree (Diploma) in Sociology at Bielefeld University in 1985 after studying for one year as a postgraduate at the University of Edinburgh. After a three-year scholarship from the DAAD at the European University Institute (EUI) and a one-year scholarship from the Swedish Institute for conducting field research in Sweden, I finished my PhD studies at the EUI in 1991 under the supervision of Gøsta Esping-Andersen and Claus Offe. After working as a research assistant in Paderborn and later with a DFG-Habilitationstipendium at Göteborg University I received my lenia legendi in Political Sociology under the supervision of Klaus Eder in 1998.
In 1996, I was appointed as Research Professor of Political Science in the Department of Politics and Economics at Nottingham Trend University. Since 1999 I have been Professor (C4) of Comparative Politics at the University of Greifswald. During my employment, I have been Guest Professor at the Universities of California (Los Angeles and Irvine), New York University (NYU), the National University of Australia in Canberra, the University of Bergen (Norway), Åbo Akademi (Finnland), Lincoln University (New Zealand), and the universities of Södertörn and Göteborg (Sweden).
I received funds for projects from the Swedish Research Council, Swedish Council for Planning and Coordination of Research, the Ministry of Research and Technology of the Federal Republic of Germany, several projects from the DFG and Fritz Thyssen Foundation in the areas of environmental politics and policy, international diffusion, welfare state research, and emerging patterns of democracies in Central and Eastern Europe. I am a board member and regional coordinator of the Sustainability Government Index (SGI) of the Bertelsmann Foundation and board member of the Institute for Climate Protection, Energy and Mobility (IKEM). Since October 2012 I have been a permanent Fellow of the Kolleg-Forschergruppe (KFG) “The Transformative Power of Europe” at the Free University Berlin. From 2006 to 2014 I was a member of the Advisory Board of the Center of Excellence (Democracy: A Citizen Perspective) at Åbo Akademi, Finland.
I have refereed articles in more than 20 journals among them the American Journal of Political Science, American Political Science Review, The Journal of Politics, American Sociological Review, International Organization, World Politics, European Journal of Political Research, Comparative Political Studies, Socio-Economic Review, Party Politics and the British Journal of Political Science. I have also been invited to review projects for the DFG, Australian Research Council, the Netherlands Organisation for Scientific Research, Swedish Research Council and the Icelandic Research Fund.
I received funded sabbaticals from the DFG (October 2004–April 2005), the Hanse Wissenschaftskolleg (April 2007–March 2008), Södertörn University (September 2011–March 2011), the National Australian University (January–May 1998) and the KFG (October 2011–September 2012; October 2015–September 2016).
My research focus is on comparative politics, in particular macro-comparative studies. Aside from that I specialized on the Nordic countries – especially Sweden. I published general articles on the political system of these countries or on special aspects. I am also engaged in studies analyzing the development of the Baltic Sea Region. More in general I published two monographs on the introduction to comparative politics and one to political science with Thomas Bernauer, Stefanie Walter and Patrick Kuhn. I also engaged in books and articles which advanced the methodology – qualitative and quantitative – of comparative politics.
My major contribution in comparative environmental research has been published by Cambridge University Press (2016) with endorsements by Arend Lijphart, George Tsebelis, Ron Mitchell and Lyle Scruggs. As the endorsements show, this book is not only on environmental performance but also demonstrates new ways of modelling the political process in macro-comparative politics. Lijphart states:
"This excellent study shows how various styles of politics exist simultaneously in modern societies. … A major contribution of this study is the agenda setting power model which illustrates how these two strategies work in democracies. The conclusion builds on a rigorous data analysis which underlines the argument compellingly. This approach provides a very attractive model for other studies in the field of macro-comparative politics."
Ron Mitchell recommends this book as the “go-to book” in environmental politics. Furthermore he concludes:
"This book provides a sophisticated and carefully articulated argument that reflects Jahn’s unique depth and breadth of knowledge regarding political and policy processes, on the one hand, and environmental degradation, on the other. The book brings together an impressively broad range of theoretical insights, methodological tools, and empirical evidence in an analysis that provides a compelling examination of why countries sometimes succeed but too often fail in their efforts to protect the natural environment. This book has set a new standard of excellence for those seeking to understand comparative environmental politics."
I also devoted my research to new conceptualizations of established concepts in order to make them fit for time-series—cross section analysis. Particularly worth mentioning here is a time-variant index for corporatism for 42 countries from 1960-2010 or veto players. The latter has been appraised by George Tsebelis in his introduction to the research on veto player theory:
"There are two important contributions that Jahn introduces in his analysis, both of them depend on the time dimension. Preferences of actors change over time. This change was not included in my original work, so Jahn clearly precedes one step further. … The other significant change that Jahn introduces is change of institutions."
I also offer indices for party positions, veto players and the EU which are time variant and country specific. This data and additional information are publicly available for interested scholars (http://comparativepolitics.uni-greifswald.de). Since 2013, when the dataset was opened to the public, the data has been downloaded more than 1,500 times.
Interdisciplinary work and projects concern the development of an index of heating and cooling degrees for 21 OECD countries. This research is highly relevant to estimate the causes of increasing energy use. The work for this has been published among others in the scientific peer-reviewed journal of the American Metrological Society. A project on Health Policy and Cancer Prevention has been sponsored by Sanofi Pasteur MSD from October 2007 to February 2009.
I also worked in the field of social policy where we supply scholars with highly sophisticated data on welfare state benefits. Together with Lyle Scruggs (University of Connecticut) and Kati Kuitto (Finnish Centre for Pensions) I present data on the generosity of social insurance benefits in 33 countries around the world (www.cwed2.org). This dataset is widely used and since its launch in 2013, has been applied in more than 200 peer-reviewed articles. The most recent single-authored publication in this context has just been published by the European Journal of Social Policy.
Over the years, I have also been interested in diffusion analysis. In this context I pioneered the spatial analysis of diffusion in political science (first publication in 2003). The breakthrough was a single-authored article in International Organization in 2006. Since then I have continuously worked in this area and elaborated the technique of modelling the interdependence of states in times of globalization. By doing this I have strengthened the field of comparative politics and responded to the claim of the “end of methodological nationalism” and that the ontology of macro-quantitative research is unable to grasp international interdependence. I also combined party research with diffusion research.
Recently I investigate the political factors explaining differences in climate policy and the strategies in corona crisis. One aspect of this research is on the impact of party effects and populism on these policies.
The substantive results have been published at Cambridge University Press and in peer-reviewed journals such as International Organization, European Journal of Political Research, Socio-Economic Review, West European Politics, European Journal of Public Policy, European Journal of Social Policy, Policy Sciences, Scandinavian Political Studies, Weather, Climate and Society, Party Politics and Environmental Politics.
In 2009, I took parental leave for one term and since then have played an active role in raising my two children born 2009 and 2011.