On March 5, as part of the Center on Democracy, Development and the Rule of Law’s Research Seminar Series, Laia Balcells — the Christopher F. Gallagher Family Professor of Government at Georgetown University — delivered a presentation on the impact of transitional justice museums. Balcells presented a series of co-authored studies that have examined the political and social effects of transitional justice museums — institutions that commemorate victims of past violence and shape collective memory in post-conflict or post-authoritarian societies. These museums were presented as part of broader transitional justice efforts, alongside trials, truth commissions, and reparations, all of which aim to address historical injustices and strengthen democratic values. The central question of the research project is whether these museums actually influence visitors’ political attitudes and beliefs, and under what conditions such influence occurs.

Transitional justice museums have become increasingly common around the world, particularly since World War II, as societies have attempted to confront legacies of violence and authoritarian rule. Despite their growing prevalence, their societal impact has remained contested. Some scholars have argued that museums encourage empathy, tolerance, and greater awareness of human rights. Others have warned that they may generate political polarization, especially when the historical narratives they present challenge existing identities or ideological commitments. The presentation, therefore, emphasized the need for systematic evidence to determine when museums persuade audiences and when they instead reinforce existing divisions.

To investigate this question, the research presented by Balcells relied on multiple field experiments conducted in museums across different political contexts. The first case study (co-authored with Valeria Palanza and Elsa Voytas) examined the Museo de la Memoria y de los Derechos Humanos in Santiago, Chile, which commemorates victims of the Pinochet dictatorship. Participants were randomly assigned either to visit the museum or to a control group, and their attitudes were measured before and after the visit. The results suggested that visiting the museum significantly influenced visitors’ emotions and political attitudes. In particular, exposure to the museum increased emotional responses, such as compassion toward victims, and affected views on transitional justice and democratic institutions. Some of these effects also persisted over time, indicating that museum experiences could have lasting attitudinal consequences.

The second case (co-authored with Elsa Voytas) focused on an exhibit on “The Troubles” at the Ulster Museum in Northern Ireland. This context differed from Chile because the conflict involved multiple groups and remained politically sensitive. The research design combined focus groups, field experiments with university students, and survey experiments with members of the general population. Although the exhibit generated strong emotional reactions among visitors, the findings showed little evidence that it significantly changed attitudes toward out-groups or transitional justice policies. Instead, political identities and sectarian divisions remained largely stable. This suggested that in deeply divided societies, emotional responses to historical narratives do not necessarily translate into meaningful changes in political attitudes.

The third case (co-authored with Francesca Parente and Ethan vanderWilden) examined the United States Holocaust Memorial Museum in Washington, DC. Unlike the previous cases, the Holocaust did not directly implicate the museum’s primary audience in the same way as domestic conflicts. The research tested whether visiting the museum increased support for democratic values and reduced antisemitic attitudes. The findings showed that visits increased agreement with what Balcells and her co-authors described as “inclusive Holocaust lessons,” including stronger support for democracy, human rights, and opposition to genocide and authoritarianism. The museum also increased empathy toward Jewish people and support for Holocaust remembrance, with some effects lasting for at least one month after the visit.

Overall, the comparative analysis suggested that transitional justice museums could shape attitudes, but their effectiveness depended heavily on political and social context. Museums appeared more successful at reinforcing democratic norms and historical awareness than at transforming deeply entrenched intergroup attitudes. The presentation concluded by highlighting what Balcells referred to as the “Transitional Justice Museum Paradox”: societies that most need such institutions to promote reconciliation may also be the places where the likelihood of establishing such museums is lower, and where, if they are built, their impact is most limited.