Here you find Joao Ozawa’s latest publications.

Book chapters

• Ozawa, J., & Woolley, S. (Accepted). Regulating Computational Propaganda: Brazil’s Supreme Court and the Battle Against Disinformation. In D. Guzek, J. Labarre, K. Koc-Michalska, D. Lilleker, & U. Russmann (Eds.), Handbook of Digital Politics. De Gruyter.

• Lukito, J. & Ozawa, J. (2026). Using Technology to Drive Social Change: Dark Participation and Social Movements in Brazil. In Z. Papacharissi (Ed.), The Routledge Companion to Digital Media and Democracy. Routledge.

Peer-reviewed publications

• Ozawa, J., Woolley, S., & Lukito, J. (2024). Taking the Power Back: How Diaspora Community Organizations Are Fighting Disinformation Spread. Harvard Kennedy School Misinformation Review. https://doi.org/10.37016/mr-2020-146

• Ozawa, J., Lukito, J., Bailez, F., & Fakhouri, L. (2024). January 6 Capitol Attack vs January 8 Brasília Attack: Patriotism and Disinformation. Harvard Kennedy School Misinformation Review. https://doi.org/10.37016/mr-2020-137

• Ozawa, J., Lukito, J., Lee, T., Varma, A., & Alves, R. (2023). Attacks Against Journalists in Brazil: Catalyzing Effects and Resilience During Jair Bolsonaro’s Government. The International Journal of Press/Politics. https://doi.org/10.1177/19401612231182618 [Jay Blumler Best Article Award]

• Ozawa, J., Woolley, S., Straubhaar, J., Riedl, M., Joseff, K., & Gursky, J. (2023). How Disinformation on WhatsApp Went from Campaign Weapon to Governmental Propaganda in Brazil. Social Media + Society, 9(1). https://doi.org/10.1177/20563051231160632

• Davis, S., Ozawa, J., Straubhaar, J., & Woolley, S. (2023). When Right-Wing Populism Becomes Distorted Public Health Communication: Tracing the Roots of Jair Bolsonaro’s Epidemiological Denialism. International Journal of Communication, 17(0), 19. https://ijoc.org/index.php/ijoc/article/view/19729

• Lukito, J., Cui, Z., Hu, A., Lee, T., & Ozawa, J. (2022). States vs. Social Movements: Protests and State Repression in Asia. Media and Communication, 10(4), 5–17. https://doi.org/10.17645/mac.v10i4.5623

White papers

• Riedl, M. J., Ozawa, J., Woolley, S., & Garimella, K. (2022) Talking Politics on WhatsApp: A Survey of Cuban, Indian, and Mexican American Diaspora Communities in the United States [White paper]. Center for Media Engagement. https://mediaengagement.org/research/whatsapp-politics-cuban-indian-mexican-american-communities-in-the-united-states/

Peer-reviewed conference papers

• de Carvalho, R., Ozawa, J., & Soto-Vásquez, A. D. (2025). Populist Connective Memories: YouTube Users’ Reactions to the Coverage of the January Insurrections in Brazil and the United States. Paper presented at ICA 2025, Denver, CO. [Top Faculty Award, Global Communication and Social Change Division]

• de Carvalho, R., Ozawa, J., & Soto-Vásquez, A. D. (2024). Memory-Making of the January Attacks in Brazil and the United States: Examining the Role of YouTube in Collective Remembrances of Far-Right Insurrections. Paper presented at the International Journal of Press/Politics Conference, Edinburgh, Scotland.

• Ozawa, J., Woolley, S., Riedl, M., & Trauthig, I. (2024). WhatsApp Usage and Misinformation Belief: Surveying Cuban, Indian, and Mexican Diaspora Communities. Paper presented at AEJMC 2024, Philadelphia, PA.

• Ozawa, J., Lukito, J., & Woolley, S. (2024). Jair Bolsonaro and WhatsApp: A Hybrid Mode of Computational Propaganda to Promote an Insurrection in Brazil. Paper presented at ICA 2024, Gold Coast, Australia.

• Ozawa, J., & González de Bustamante, C. (2024). The Promise and Pitfalls of Mapping Exiled Journalists in Latin America: A Core-Periphery Approach. Paper presented at ICA 2024, Gold Coast, Australia.

• Ozawa, J., & González de Bustamante, C. (2024). Responses to Attacks Against Journalists: A Comparative Study of Mexico and Brazil. Paper presented at IAMCR 2024, Christchurch, New Zealand.

• Ozawa, J., & González de Bustamante, C. (2024). The Challenges of Mapping Exiled Journalists: A Core-Periphery Approach. Paper presented at LASA 2024, Bogotá, Colombia.

• Ozawa, J., Woolley, S., & Trauthig, I. (2023). How Does the Brazilian Diaspora in the U.S. Make Sense of the January 8 Insurrection? A Study on Disinformation, WhatsApp, and Transnational Conspiracies. Paper presented at the Symposium on Misinformation & Marginalization, University of North Carolina at Chapel Hill, Chapel Hill, NC.

• Ozawa, J., & González de Bustamante, C. (2023). The Challenges of Mapping Exiled Journalists: A Core-Periphery Approach. Paper presented at Global Fusion 2023, Austin, TX.

• DalBen Furtado, S., Ozawa, J., & González de Bustamante, C. (2023). Data Colonialism and Generative AI: Evaluating De-biasing Actions to Mitigate Harmful Content in Large Language Models. Paper presented at Global Fusion 2023, Austin, TX.

• Lee, T., Lukito, J., Varma, A., & Ozawa, J. (2023). Catalyzing Effects: Paradoxical Effects of Attempts to Chill on Journalism. Paper accepted for presentation at AEJMC 2023, Washington, DC.

• Riedl, M., Ozawa, J., Woolley, S., Trauthig, I., & Garimella, K. (2023). What affects misinformation encounters and sharing on WhatsApp? Surveying diasporic communities in the United States. Paper presented at ICA 2023, Toronto, Canada.

• Ozawa, J., & Straubhaar, J. (2022). United States vs Brazil: An Analysis of the Media’s Role on Right-Wing Extremism. Paper presented at Global Fusion 2022, Philadelphia, PA.

• Ozawa, J., Woolley, S., & Flores, E. (2022). Political Disinformation and Diasporic Online Communities in the United States. Paper presented at AEJMC 2022, Detroit, MI.

• Ozawa, J., Lukito, J., Lee, T. & Varma, A. (2022). Violence Against Journalists in Brazil: The Effects of Two Years of Jair Bolsonaro’s Government. Paper presented at AEJMC 2022, Detroit, MI.

• Davis, S., Ozawa, J., Straubhaar, J., & Woolley, S. (2022). When Right-wing Populism Becomes Distorted Public Health Communication: Tracing the Roots of Jair Bolsonaro’s Epidemiological Denialism. Paper presented at IAMCR 2022, Beijing, China.

• Lukito, J., Cui, Z., Hu, A., Lee, T., Ozawa, J. (2022). Propaganda before violence: A study of state coercion and media ecologies in five countries. Paper presented at ICA 2022, Paris, France.

• Ozawa, J. (2021). QAnon with a tropical flavor: the conspiracy theory goes to Brazil. Paper presented at the QAnonference 2021, Virtual Conference.

• Ozawa, J., Woolley, S., Straubhaar, J., Joseff, K., Gursky, J., & Riedl, M. (2021). How disinformation on WhatsApp went from campaign weapon to governmental propaganda in Brazil. Paper presented at ICA 2021, Virtual Conference.

• Ozawa, J., Vu, H., Mihailova, T., & McCombs, M. (2020). Impact of COVID-19 news coverage on personal concerns among the public. Paper presented at the Agenda Setting Journal Virtual Conference, Boulder, CO.

• Ozawa, J., Vu, H., Murthy, D., & McCombs, M. (2020). Agenda-setting Effects of Fake News on the Public’s Issue Agenda. Paper presented at AEJMC 2020, San Francisco, CA.

• Lee, T., Johnson, T., & Ozawa, J., (2020). What’s Fake News to You? How Divided Epistemologies Shape Perception of Fake News. Paper presented at AEJMC 2020, San Francisco, CA.

• Ozawa, J., Senise, D., & Batista, L. (2019). Applying social network analysis to compare mass media and interpersonal agenda-setting effects. Poster presented at the 10th Latin American Web Congress, held at The Web Conference 2019, San Francisco, CA.

• Ozawa, J., Senise, D., & Batista, L. (2018). Applying social network analysis to compare mass media and interpersonal agenda-setting effects. Paper presented at The Third International Workshop on News and Public Opinion, held at the 12th International AAAI Conference on Web and Social Media, Palo Alto, CA.

• Ozawa, J., & Batista, L. (2018). Applying agenda-setting theory and social network analysis in advertising and marketing studies. Paper presented at the IX Pró-Pesq, São Paulo, SP.

• Ozawa, J., & Batista, L. (2018). Social network analysis as a methodological proposal for agenda-setting theory studies. Paper presented at the II International Seminar of Research on Mediatization and Social Processes, São Leopoldo, Brazil.

• Ozawa, J., & Batista, L. (2017). Effects of social networks on interpersonal agenda-setting processes. Paper presented at the I Graduate Connection: Dialogues and Intersections in Student Research from PPGCOM, São Paulo, Brazil.

• Ozawa, J., & Batista, L. (2016). Interpersonal Agenda-Setting, Mediatization and Mediation: a possible theoretical dialogue. Paper presented at the XXXIX Brazilian Conference of Communication Sciences, São Paulo, Brazil.

• Ozawa, J., & Batista, L. (2016). Effects of social connections on interpersonal agenda-setting processes. Paper presented at the VII Academic Journey of the Students from PPGCOM, São Paulo, Brazil.

• Ozawa, J., & Lima, M. (2015). Twitter and the Traditional Media: A Study of Intermedia Agenda-Setting. Paper presented at the VI Pró-Pesq, São Paulo, Brazil.

• Ozawa, J., & Batista, L. (2010). A Flu and the Agenda-Setting Hypothesis. Paper presented at the I Pró-Pesq, São Paulo, Brazil.

• Ozawa, J., & Barros, C. (2008). Advertising and the Agenda-Setting Hypothesis. Paper presented at the XIII Conference of Communication Sciences in the Southeast Region, São Paulo, Brazil.

• Ozawa, J., & Barros, C. (2008). Definition of Value, Advertising and the Agenda-Setting Hypothesis. Paper presented at the XXXI Brazilian Conference of Communication Sciences, São Paulo, Brazil.