Sergi Martínez
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Sergi Martínez has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Laia Balcells
Georgetown University
2 shared publications Vicente Valentim
School of Politics, Economics, and Global Affairs, IE University, Madrid, Spain
2 shared publicationsElias Dinas
Department of Political and Social Sciences, European University Institute, San Domenico di Fiesole, Italy
1 shared publicationEthan Vanderwilden
Department of Political Science, University of Wisconsin-Madison, Madison, WI, USA
1 shared publication- Ethan Vanderwilden
University of Wisconsin-Madison, Madison, WI, USA
1 shared publication
Latest Publications
- Open Access
- 31 July 2025
- Published by Cambridge University Press (CUP) in Journal of Experimental Political Science
- Vol. 13 (3) , 1-12
Re-Stigmatizing the Radical Right: A One-Way Street?
Radical right behavior and support for radical right parties have increased across many countries in recent decades. A growing body of research has argued that, similar to the spread of other extremist behaviors, this is due to an erosion of political norms. This suggests that re-stigmatizing radical right parties might be an effective way of countering their growth. We use a survey experiment in Spain that compares the effectiveness of three theory-driven interventions aimed at increasing political stigma against a radical right party. Contrary to expectations, we fail to validate the efficacy of vignette-based attempts at stigmatization, instead identifying some backlash effects. Methodologically, our findings underscore the importance of validating treatments, as we show that simple attempts at re-stigmatization can produce null or opposing effects to their intended purpose. Theoretically, our results support the idea that normalization is a “one-way street,” in that re-stigmatizing parties is difficult after a party has become normalized.
- 31 July 2025
- Published by Cambridge University Press (CUP) in Journal of Experimental Political Science
- Vol. 13 (3) , 1-12
Open AccessRe-Stigmatizing the Radical Right: A One-Way Street?
Radical right behavior and support for radical right parties have increased across many countries in recent decades. A growing body of research has argued that, similar to the spread of other extremist behaviors, this is due to an erosion of political norms. This suggests that re-stigmatizing radical right parties might be an effective way of countering their growth. We use a survey experiment in Spain that compares the effectiveness of three theory-driven interventions aimed at increasing political stigma against a radical right party. Contrary to expectations, we fail to validate the efficacy of vignette-based attempts at stigmatization, instead identifying some backlash effects. Methodologically, our findings underscore the importance of validating treatments, as we show that simple attempts at re-stigmatization can produce null or opposing effects to their intended purpose. Theoretically, our results support the idea that normalization is a “one-way street,” in that re-stigmatizing parties is difficult after a party has become normalized.
- Open Access
- 16 April 2025
- Published by Cambridge University Press (CUP) in Political Science Research and Methods
- Vol. 14 (2) , 533-541
Discounting extreme positions: party normalization and support for the far right
When are far right parties punished for their extreme positions? We argue that the punishments of deviant position-taking are conditional on the degree to which a far right party is normalized or stigmatized in the party system. When the far right is treated as normal, the costs suffered from these parties’ extreme positions decrease, as moderate voters discount the authenticity of their commitment to such positions. We use a survey experiment to test this argument in Spain, finding evidence for discounting on the far right’s extreme anti-LGBTQ+ statements, but not on its embrace of authoritarian history. This study thus shows that normalization and stigmatization of the far right can change how its extreme positions are interpreted by voters.
- 16 April 2025
- Published by Cambridge University Press (CUP) in Political Science Research and Methods
- Vol. 14 (2) , 533-541
Open AccessDiscounting extreme positions: party normalization and support for the far right
When are far right parties punished for their extreme positions? We argue that the punishments of deviant position-taking are conditional on the degree to which a far right party is normalized or stigmatized in the party system. When the far right is treated as normal, the costs suffered from these parties’ extreme positions decrease, as moderate voters discount the authenticity of their commitment to such positions. We use a survey experiment to test this argument in Spain, finding evidence for discounting on the far right’s extreme anti-LGBTQ+ statements, but not on its embrace of authoritarian history. This study thus shows that normalization and stigmatization of the far right can change how its extreme positions are interpreted by voters.
- 7 August 2023
- Published by SAGE Publications in Journal of Conflict Resolution
- Vol. 68 (6) , 1168-1198
Type of Violence and Ingroup Identity: Evidence From the Spanish Civil War
Wartime violence and authoritarian repression against civilians take various forms. Past research has explored the causes and consequences of violence, but no previous work simultaneously assessed the long-term effects of different types of violence on political identities. This paper contends that indiscriminate attacks can reinforce ingroup identity, whereas the role of civilian agency in selective violence may have a detrimental impact. Equipped with original data capturing municipality-level exposure to both selective and indiscriminate violence during the Spanish civil war (1936–1939) in Biscay (Basque Country), this study examines its legacy on voting behavior (1983–2015). Results indicate that fascist airstrikes increased Basque nationalism while selective violence diminished the popularity of Basque parties. Individual and community-level evidence suggests that airstrikes fostered the intergenerational transmission of political attitudes. Violence can boost national identities, but it can also erode them: it depends on the type.
- 7 August 2023
- Published by SAGE Publications in Journal of Conflict Resolution
- Vol. 68 (6) , 1168-1198
Type of Violence and Ingroup Identity: Evidence From the Spanish Civil War
Wartime violence and authoritarian repression against civilians take various forms. Past research has explored the causes and consequences of violence, but no previous work simultaneously assessed the long-term effects of different types of violence on political identities. This paper contends that indiscriminate attacks can reinforce ingroup identity, whereas the role of civilian agency in selective violence may have a detrimental impact. Equipped with original data capturing municipality-level exposure to both selective and indiscriminate violence during the Spanish civil war (1936–1939) in Biscay (Basque Country), this study examines its legacy on voting behavior (1983–2015). Results indicate that fascist airstrikes increased Basque nationalism while selective violence diminished the popularity of Basque parties. Individual and community-level evidence suggests that airstrikes fostered the intergenerational transmission of political attitudes. Violence can boost national identities, but it can also erode them: it depends on the type.
- 12 February 2023
- Published by SAGE Publications in Journal of Conflict Resolution
- Vol. 67 (10) , 2028-2057
Symbolic Conflict Resolution and Ingroup Favoritism
What are the domestic consequences of symbolic conflict resolution? We isolate the effect of symbolic conflict by looking into a dispute with no material stakes (for one side), but high symbolic ones: the Prespa Agreement, which ended the dispute on the name of FYROM, thenceforth named North Macedonia. Greeks opposed this name because the ancient Macedonian heritage is central to their national identity. Based on social identity theory, we expect this threat to the group’s distinctiveness to increase nationalist sentiment. Using an original dataset of flags displayed in the façade of buildings in Athens and Thessaloniki, which we compare to Lisbon, we find an increase in national flags in the Greek cities after the Agreement. The effect is stronger in Thessaloniki, Greek Macedonia’s capital, where the identity threat was more pronounced. We also find that the treaty shifted voters to the right, especially those residing in the region of Macedonia.
- 12 February 2023
- Published by SAGE Publications in Journal of Conflict Resolution
- Vol. 67 (10) , 2028-2057
Symbolic Conflict Resolution and Ingroup Favoritism
What are the domestic consequences of symbolic conflict resolution? We isolate the effect of symbolic conflict by looking into a dispute with no material stakes (for one side), but high symbolic ones: the Prespa Agreement, which ended the dispute on the name of FYROM, thenceforth named North Macedonia. Greeks opposed this name because the ancient Macedonian heritage is central to their national identity. Based on social identity theory, we expect this threat to the group’s distinctiveness to increase nationalist sentiment. Using an original dataset of flags displayed in the façade of buildings in Athens and Thessaloniki, which we compare to Lisbon, we find an increase in national flags in the Greek cities after the Agreement. The effect is stronger in Thessaloniki, Greek Macedonia’s capital, where the identity threat was more pronounced. We also find that the treaty shifted voters to the right, especially those residing in the region of Macedonia.