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Jan Philipp Thomeczek

Biographic Data

ID377548
NAMEJan Philipp Thomeczek
GIVEN NAMESJan Philipp
FAMILY NAMEThomeczek
SIGNATURETHOMECZEK J P
AFFILIATIONSUniversity of Potsdam
ORCID0000-0001-6620-0900
VERIFIEDYes
TOTAL WORKS19
TOTAL CITATIONS44
AUTHOR COUNT19
EDITOR COUNT0
FIRST PUBLICATION YEAR2020
LATEST PUBLICATION YEAR2026
H-INDEX4
  • Varieties of left-wing authoritarianism? The local foundations and intra-party heterogeneity of the German challenger party BSW

    Open Access•Eric Linhart, Jan Philipp Thomeczek et al.•ARTICLE•Party Politics•2026

    Research has emphasized both the existence of left-wing authoritarian attitudes among the European electorate and a lack of political supply. In Germany, this dynamic changed with the rise of the BSW. Advancing research on left-wing authoritarianism in general and the BSW specifically, we rely on original Voting Advice Application (VAA) data from six city elections in 2024, allowing us to study the supply- and demand-side at the local level. We h…

  • Populist Parties, Female Populist Leaders, and the Gendered Vote in Germany

    Open Access•Teresa Haußmann, Aiko Wagner et al.•ARTICLE•Politics and Governance•2026

    Studying the relationship between gender and populist voting is challenging because few electoral contexts allow for a direct comparison of relevant populist parties from different ideological camps under shared structural conditions. The 2025 German federal election provides a rare case: two ideologically distinct populist parties, both led by prominent female leaders, competed nationally. Alice Weidel headed the radical-right AfD, while Sahra W…

  • Are Single‐Party Voting Advice Applications Useful? Comparing Voter Preferences in the BSW‐O‐Mat With a Probability Sample

    Open Access•Jan Philipp Thomeczek•ARTICLE•Politics and Governance•2026•References: 21

    As the voting advice application (VAA) market has grown increasingly competitive, developers have focused on innovation, including specialised VAAs that focus on specific topics. This article evaluates the analytical potential of a “single-party VAA” called BSW-O-Mat, a website developed to assess alignment with the newly founded German party Bündnis Sahra Wagenknecht (BSW), attracting over 50,000 participants. Single-party VAAs face compounded s…

  • Supply and Demand of Regional Populism in Bavaria: Explaining the Regional Success of the CSU and Free Voters

    Open Access•Jan Philipp Thomeczek, Jan Philipp Philipp Thomeczek•ARTICLE•German Politics•2026•References: 22

  • The Party Politics of Anti-Covid Parties: Locating DieBasis and Its Populist Appeal in the German Party System

    Open Access•Jan Philipp Thomeczek, Anne Küppers et al.•ARTICLE•German Politics•2026•References: 26

  • A Populist Axis? Analyzing Connections Between Populist, Economic, and Cultural Dimensions of Political Space

    Open Access•Andrei Zhirnov, Jan Philipp Thomeczek et al.•ARTICLE•Comparative Political Studies•2026•References: 84

    What makes populist parties successful? What is the contribution of populist ideas to their appeal? How do they affect a voter’s choice? In this article, we treat populist orientation as just another dimension of spatial competition alongside economic and cultural dimensions, and assess its influence on vote choice. Using survey data from nine countries, we place voters and parties along the populist, economic, and cultural dimensions and estimat…

  • One model to rule them all? Choosing two-dimensional spaces for European political landscapes with VAA data

    Open Access•Jan Philipp Thomeczek, Andrei Zhirnov et al.•ARTICLE•Journal of Information Technology…•2025•Cited by: 1•References: 21

    This article investigates the effectiveness of three different two-dimensional models in representing political competition using user data from the EU and I Voting Advice Application for the EU elections from 2009 to 2019. We test different ways of aggregating economic, cultural, and European integration issues to determine which configuration best captures voter preferences across all member states. Our findings show that combining economic and…

  • Studying party-voter congruence in the European elections 2024: Introducing a new dataset on German voter positions from the VAA ‘Europartycheck’

    Open Access•Jan Philipp Thomeczek, L Constantin Wurthmann et al.•ARTICLE•European Union Politics•2025•References: 6

    We introduce a new dataset to study party-voter congruence in the European Elections 2024 in Germany. It contains party and voter positions on identical issues and scales collected using the voting advice application (VAA) ‘Europartycheck’, with over 40,000 users, and party positions from the ‘GEPARTEE’ expert survey. We present various steps to improve data quality. Besides data cleaning, we calculate weights to mitigate the selection bias in VA…

  • Issue congruence outweighs geography: Understanding the appeal of Bündnis Sahra Wagenknecht (BSW) in east and west Germany

    Open Access•Jan Philipp Thomeczek, Aiko Wagner•ARTICLE•Electoral Studies•2025•References: 15

  • How congruent are populist parties with their constituencies? Evidence from the 2019 European Parliament Elections in Italy, the Netherlands, Germany and Sweden

    Open Access•Andrei Zhirnov, Jan Philipp Thomeczek et al.•ARTICLE•Electoral Studies•2025•Cited by: 4•References: 38

  • Moderate in power, populist in opposition? Die Linke’s populist communication in the German states

    Jan Philipp Thomeczek•ARTICLE•Journal of Political Ideologies•2025•Cited by: 7

    The inclusion-moderation thesis suggests that populist parties will be 'tamed' by governing, as they must compromise to participate in coalitions. Consequently, they are expected to be more moderate compared to populist parties in opposition. However, empirical evidence for the moderation of populist communication is mixed. Moreover, existing research has focused on right-wing populism, leaving the question open if left-wing populist parties beha…

  • Anticipating Office: Does the Populist Radical Right Decrease Its Populist Communication When It Has the Opportunity to Join Government

    Open Access•Jan Philipp Thomeczek, Ludwig Bernhard•ARTICLE•Government and Opposition•2025•References: 44

    The ‘inclusion–moderation thesis’ suggests that populist parties will be tamed by government inclusion. However, empirical evidence is mixed. We argue that this may be explained by different strategic contexts. We hypothesize that populist parties that rely on coalition partners will reduce their populist communication when they have credible government prospects. We analyse multiple years of political communication by two radical-right populist …

  • The Voting Potential of Bündnis Sahra Wagenknecht

    Open Access•Jan Philipp Thomeczek•ARTICLE•Political Studies Review•2025•Cited by: 3•References: 6

    A new challenger seeks to enter the German party system: Bündnis Sahra Wagenknecht (BSW). With her new party, former Die Linke politician Sahra Wagenknecht combines a left-authoritarian profile (economically left-leaning, but culturally conservative) with anti-US, pro-Russia and anti-elitist stances. This article provides the first large-n academic study of the voter potential of this new party by using a quasi-representative sample (n = 6,000) d…

  • Is Bündnis Sahra Wagenknecht A New Alternative for Populist Voters

    Open Access•Jan Philipp Thomeczek•ARTICLE•Populism•2024•Cited by: 5

    In just five months, Bündnis Sarah Wagenknecht ( BSW ) progressed from its foundation to winning six seats in the European Parliament. Research has indicated that the party has significant potential, particularly among voters of Germany’s two populist parties: Alternative for Germany (AfD) and Die Linke. Since BSW is also classified as a populist party, this article explores the extent to which populist attitudes influence the vote choice prefere…

  • Precarity and populism: Explaining populist outlook and populist voting in Europe through subjective financial and work-related insecurity

    Open Access•Andrei Zhirnov, Lorenza Antonucci et al.•ARTICLE•European Sociological Review•2024•Cited by: 4•References: 51

    Precarity is often evoked in discussions about the rise of populism, but there is a dearth of systematic operationalization of the sociological concept of insecurity in populist research. This study fills this gap by theorizing about and empirically linking work-related and financial insecurity to populist outlook and voting in ten European countries. We propose a theoretical framework that links insecurity, respectively, to populist attitudes (s…

  • Political communication on Facebook: Do populist parties send out more posts

    Open Access•Jan Philipp Thomeczek•ARTICLE•Party Politics•2024•Cited by: 8•References: 19

    Scholars connect the rise of populist parties and the growing importance of social media platforms for political communication as the emerging social media logic seems well-suited to populist communication. The following research note presents a novel dataset that connects Facebook accounts to party-level populism data from the POPPA database. Over 600,000 posts from 226 parties between 2017 and 2019 were analysed. The results show that in most E…

  • How many different types of populists are there in Germany? An experimental approach with multiple methods

    Open Access•M Murat Ardag, Jan Philipp Thomeczek•ARTICLE•Journal of Theoretical Social…•2021

    Recent years have witnessed a growing interest in the demand-side of populism; to this day, many studies implemented variable-centered approaches to investigate populist attitudes. Utilizing a convenient sample of the German voters (N = 839), we adopt a person-centered approach by estimating latent psychological profiles and examining the exchange between the supply and demand side of populism in an experimental setting. After treating the partic…

  • Alles eine Frage von Kosten und Nutzen? Eine Aggregatdatenanalyse der Abstimmungsbeteiligung in den deutschen Bundesländern zwischen 1946 und 2019

    Open Access•Jan Philipp Thomeczek•ARTICLE•Swiss Political Science Review•2021•References: 52

    Direct democracy in Germany is primarily practiced at the state level. However, little research has analysed why participation rates vary, sometimes drastically, between individual referendums in Germany. The following article addresses this research gap with an analysis of a new aggregate dataset of participation in referendums in the federal states between 1946 and 2019. Based on the Rational Choice Theory of voting, three main factors may expl…

  • Populist Attitudes and Political Engagement: Ugly, Bad, and Sometimes Good

    M Murat Ardag, Bruno Castanho Silva et al.•ARTICLE•Representation•2020•Cited by: 12•References: 55

    Representation failures are one of the main reasons for the emergence of populism in contemporary politics. Mainstream parties’ convergence towards the centre left parts of the electorate to feel underrepresented. Populists are successful when they engage apathetic voters. In this sense, populism is suggested to be a potential corrective to democracy as long as it engages dissatisfied and disenfranchised citizens, helping close the representation…

  • Populist Attitudes and Political Engagement: Ugly, Bad, and Sometimes Good

    M Murat Ardag, Bruno Castanho Silva et al.•ARTICLE•Representation•2020•Cited by: 12•References: 55

    Representation failures are one of the main reasons for the emergence of populism in contemporary politics. Mainstream parties’ convergence towards the centre left parts of the electorate to feel underrepresented. Populists are successful when they engage apathetic voters. In this sense, populism is suggested to be a potential corrective to democracy as long as it engages dissatisfied and disenfranchised citizens, helping close the representation…

  • Political communication on Facebook: Do populist parties send out more posts

    Open Access•Jan Philipp Thomeczek•ARTICLE•Party Politics•2024•Cited by: 8•References: 19

    Scholars connect the rise of populist parties and the growing importance of social media platforms for political communication as the emerging social media logic seems well-suited to populist communication. The following research note presents a novel dataset that connects Facebook accounts to party-level populism data from the POPPA database. Over 600,000 posts from 226 parties between 2017 and 2019 were analysed. The results show that in most E…

  • Moderate in power, populist in opposition? Die Linke’s populist communication in the German states

    Jan Philipp Thomeczek•ARTICLE•Journal of Political Ideologies•2025•Cited by: 7

    The inclusion-moderation thesis suggests that populist parties will be 'tamed' by governing, as they must compromise to participate in coalitions. Consequently, they are expected to be more moderate compared to populist parties in opposition. However, empirical evidence for the moderation of populist communication is mixed. Moreover, existing research has focused on right-wing populism, leaving the question open if left-wing populist parties beha…

  • Is Bündnis Sahra Wagenknecht A New Alternative for Populist Voters

    Open Access•Jan Philipp Thomeczek•ARTICLE•Populism•2024•Cited by: 5

    In just five months, Bündnis Sarah Wagenknecht ( BSW ) progressed from its foundation to winning six seats in the European Parliament. Research has indicated that the party has significant potential, particularly among voters of Germany’s two populist parties: Alternative for Germany (AfD) and Die Linke. Since BSW is also classified as a populist party, this article explores the extent to which populist attitudes influence the vote choice prefere…

  • How congruent are populist parties with their constituencies? Evidence from the 2019 European Parliament Elections in Italy, the Netherlands, Germany and Sweden

    Open Access•Andrei Zhirnov, Jan Philipp Thomeczek et al.•ARTICLE•Electoral Studies•2025•Cited by: 4•References: 38

  • Precarity and populism: Explaining populist outlook and populist voting in Europe through subjective financial and work-related insecurity

    Open Access•Andrei Zhirnov, Lorenza Antonucci et al.•ARTICLE•European Sociological Review•2024•Cited by: 4•References: 51

    Precarity is often evoked in discussions about the rise of populism, but there is a dearth of systematic operationalization of the sociological concept of insecurity in populist research. This study fills this gap by theorizing about and empirically linking work-related and financial insecurity to populist outlook and voting in ten European countries. We propose a theoretical framework that links insecurity, respectively, to populist attitudes (s…

  • The Voting Potential of Bündnis Sahra Wagenknecht

    Open Access•Jan Philipp Thomeczek•ARTICLE•Political Studies Review•2025•Cited by: 3•References: 6

    A new challenger seeks to enter the German party system: Bündnis Sahra Wagenknecht (BSW). With her new party, former Die Linke politician Sahra Wagenknecht combines a left-authoritarian profile (economically left-leaning, but culturally conservative) with anti-US, pro-Russia and anti-elitist stances. This article provides the first large-n academic study of the voter potential of this new party by using a quasi-representative sample (n = 6,000) d…

  • One model to rule them all? Choosing two-dimensional spaces for European political landscapes with VAA data

    Open Access•Jan Philipp Thomeczek, Andrei Zhirnov et al.•ARTICLE•Journal of Information Technology…•2025•Cited by: 1•References: 21

    This article investigates the effectiveness of three different two-dimensional models in representing political competition using user data from the EU and I Voting Advice Application for the EU elections from 2009 to 2019. We test different ways of aggregating economic, cultural, and European integration issues to determine which configuration best captures voter preferences across all member states. Our findings show that combining economic and…

  • Populist Attitudes and Political Engagement: Ugly, Bad, and Sometimes Good

    M Murat Ardag, Bruno Castanho Silva et al.•ARTICLE•Representation•2020•Cited by: 12•References: 55

    Representation failures are one of the main reasons for the emergence of populism in contemporary politics. Mainstream parties’ convergence towards the centre left parts of the electorate to feel underrepresented. Populists are successful when they engage apathetic voters. In this sense, populism is suggested to be a potential corrective to democracy as long as it engages dissatisfied and disenfranchised citizens, helping close the representation…

  • How many different types of populists are there in Germany? An experimental approach with multiple methods

    Open Access•M Murat Ardag, Jan Philipp Thomeczek•ARTICLE•Journal of Theoretical Social…•2021

    Recent years have witnessed a growing interest in the demand-side of populism; to this day, many studies implemented variable-centered approaches to investigate populist attitudes. Utilizing a convenient sample of the German voters (N = 839), we adopt a person-centered approach by estimating latent psychological profiles and examining the exchange between the supply and demand side of populism in an experimental setting. After treating the partic…

  • Alles eine Frage von Kosten und Nutzen? Eine Aggregatdatenanalyse der Abstimmungsbeteiligung in den deutschen Bundesländern zwischen 1946 und 2019

    Open Access•Jan Philipp Thomeczek•ARTICLE•Swiss Political Science Review•2021•References: 52

    Direct democracy in Germany is primarily practiced at the state level. However, little research has analysed why participation rates vary, sometimes drastically, between individual referendums in Germany. The following article addresses this research gap with an analysis of a new aggregate dataset of participation in referendums in the federal states between 1946 and 2019. Based on the Rational Choice Theory of voting, three main factors may expl…

  • Is Bündnis Sahra Wagenknecht A New Alternative for Populist Voters

    Open Access•Jan Philipp Thomeczek•ARTICLE•Populism•2024•Cited by: 5

    In just five months, Bündnis Sarah Wagenknecht ( BSW ) progressed from its foundation to winning six seats in the European Parliament. Research has indicated that the party has significant potential, particularly among voters of Germany’s two populist parties: Alternative for Germany (AfD) and Die Linke. Since BSW is also classified as a populist party, this article explores the extent to which populist attitudes influence the vote choice prefere…

  • Precarity and populism: Explaining populist outlook and populist voting in Europe through subjective financial and work-related insecurity

    Open Access•Andrei Zhirnov, Lorenza Antonucci et al.•ARTICLE•European Sociological Review•2024•Cited by: 4•References: 51

    Precarity is often evoked in discussions about the rise of populism, but there is a dearth of systematic operationalization of the sociological concept of insecurity in populist research. This study fills this gap by theorizing about and empirically linking work-related and financial insecurity to populist outlook and voting in ten European countries. We propose a theoretical framework that links insecurity, respectively, to populist attitudes (s…

  • Political communication on Facebook: Do populist parties send out more posts

    Open Access•Jan Philipp Thomeczek•ARTICLE•Party Politics•2024•Cited by: 8•References: 19

    Scholars connect the rise of populist parties and the growing importance of social media platforms for political communication as the emerging social media logic seems well-suited to populist communication. The following research note presents a novel dataset that connects Facebook accounts to party-level populism data from the POPPA database. Over 600,000 posts from 226 parties between 2017 and 2019 were analysed. The results show that in most E…

  • One model to rule them all? Choosing two-dimensional spaces for European political landscapes with VAA data

    Open Access•Jan Philipp Thomeczek, Andrei Zhirnov et al.•ARTICLE•Journal of Information Technology…•2025•Cited by: 1•References: 21

    This article investigates the effectiveness of three different two-dimensional models in representing political competition using user data from the EU and I Voting Advice Application for the EU elections from 2009 to 2019. We test different ways of aggregating economic, cultural, and European integration issues to determine which configuration best captures voter preferences across all member states. Our findings show that combining economic and…

  • Studying party-voter congruence in the European elections 2024: Introducing a new dataset on German voter positions from the VAA ‘Europartycheck’

    Open Access•Jan Philipp Thomeczek, L Constantin Wurthmann et al.•ARTICLE•European Union Politics•2025•References: 6

    We introduce a new dataset to study party-voter congruence in the European Elections 2024 in Germany. It contains party and voter positions on identical issues and scales collected using the voting advice application (VAA) ‘Europartycheck’, with over 40,000 users, and party positions from the ‘GEPARTEE’ expert survey. We present various steps to improve data quality. Besides data cleaning, we calculate weights to mitigate the selection bias in VA…

  • Issue congruence outweighs geography: Understanding the appeal of Bündnis Sahra Wagenknecht (BSW) in east and west Germany

    Open Access•Jan Philipp Thomeczek, Aiko Wagner•ARTICLE•Electoral Studies•2025•References: 15

  • How congruent are populist parties with their constituencies? Evidence from the 2019 European Parliament Elections in Italy, the Netherlands, Germany and Sweden

    Open Access•Andrei Zhirnov, Jan Philipp Thomeczek et al.•ARTICLE•Electoral Studies•2025•Cited by: 4•References: 38

  • Moderate in power, populist in opposition? Die Linke’s populist communication in the German states

    Jan Philipp Thomeczek•ARTICLE•Journal of Political Ideologies•2025•Cited by: 7

    The inclusion-moderation thesis suggests that populist parties will be 'tamed' by governing, as they must compromise to participate in coalitions. Consequently, they are expected to be more moderate compared to populist parties in opposition. However, empirical evidence for the moderation of populist communication is mixed. Moreover, existing research has focused on right-wing populism, leaving the question open if left-wing populist parties beha…

  • Anticipating Office: Does the Populist Radical Right Decrease Its Populist Communication When It Has the Opportunity to Join Government

    Open Access•Jan Philipp Thomeczek, Ludwig Bernhard•ARTICLE•Government and Opposition•2025•References: 44

    The ‘inclusion–moderation thesis’ suggests that populist parties will be tamed by government inclusion. However, empirical evidence is mixed. We argue that this may be explained by different strategic contexts. We hypothesize that populist parties that rely on coalition partners will reduce their populist communication when they have credible government prospects. We analyse multiple years of political communication by two radical-right populist …

  • The Voting Potential of Bündnis Sahra Wagenknecht

    Open Access•Jan Philipp Thomeczek•ARTICLE•Political Studies Review•2025•Cited by: 3•References: 6

    A new challenger seeks to enter the German party system: Bündnis Sahra Wagenknecht (BSW). With her new party, former Die Linke politician Sahra Wagenknecht combines a left-authoritarian profile (economically left-leaning, but culturally conservative) with anti-US, pro-Russia and anti-elitist stances. This article provides the first large-n academic study of the voter potential of this new party by using a quasi-representative sample (n = 6,000) d…

  • Varieties of left-wing authoritarianism? The local foundations and intra-party heterogeneity of the German challenger party BSW

    Open Access•Eric Linhart, Jan Philipp Thomeczek et al.•ARTICLE•Party Politics•2026

    Research has emphasized both the existence of left-wing authoritarian attitudes among the European electorate and a lack of political supply. In Germany, this dynamic changed with the rise of the BSW. Advancing research on left-wing authoritarianism in general and the BSW specifically, we rely on original Voting Advice Application (VAA) data from six city elections in 2024, allowing us to study the supply- and demand-side at the local level. We h…

  • Populist Parties, Female Populist Leaders, and the Gendered Vote in Germany

    Open Access•Teresa Haußmann, Aiko Wagner et al.•ARTICLE•Politics and Governance•2026

    Studying the relationship between gender and populist voting is challenging because few electoral contexts allow for a direct comparison of relevant populist parties from different ideological camps under shared structural conditions. The 2025 German federal election provides a rare case: two ideologically distinct populist parties, both led by prominent female leaders, competed nationally. Alice Weidel headed the radical-right AfD, while Sahra W…

  • Are Single‐Party Voting Advice Applications Useful? Comparing Voter Preferences in the BSW‐O‐Mat With a Probability Sample

    Open Access•Jan Philipp Thomeczek•ARTICLE•Politics and Governance•2026•References: 21

    As the voting advice application (VAA) market has grown increasingly competitive, developers have focused on innovation, including specialised VAAs that focus on specific topics. This article evaluates the analytical potential of a “single-party VAA” called BSW-O-Mat, a website developed to assess alignment with the newly founded German party Bündnis Sahra Wagenknecht (BSW), attracting over 50,000 participants. Single-party VAAs face compounded s…

  • Supply and Demand of Regional Populism in Bavaria: Explaining the Regional Success of the CSU and Free Voters

    Open Access•Jan Philipp Thomeczek, Jan Philipp Philipp Thomeczek•ARTICLE•German Politics•2026•References: 22

  • The Party Politics of Anti-Covid Parties: Locating DieBasis and Its Populist Appeal in the German Party System

    Open Access•Jan Philipp Thomeczek, Anne Küppers et al.•ARTICLE•German Politics•2026•References: 26

  • A Populist Axis? Analyzing Connections Between Populist, Economic, and Cultural Dimensions of Political Space

    Open Access•Andrei Zhirnov, Jan Philipp Thomeczek et al.•ARTICLE•Comparative Political Studies•2026•References: 84

    What makes populist parties successful? What is the contribution of populist ideas to their appeal? How do they affect a voter’s choice? In this article, we treat populist orientation as just another dimension of spatial competition alongside economic and cultural dimensions, and assess its influence on vote choice. Using survey data from nine countries, we place voters and parties along the populist, economic, and cultural dimensions and estimat…

Politics (14 works) · Populism, Right-Wing Movements (13 works) · Political science (12 works) · Electoral Systems and Political Participation (11 works) · Law (10 works) · Populism (9 works) · German (8 works) · Law (8 works) · Voting (8 works) · Sociology (7 works)

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