Viriato Queiroga is a political scientist specialising in comparative political behaviour, social tolerance, and democratic representation. He holds a PhD in Political Science from Iscte – University Institute of Lisbon (2026), where he also completed his Bachelor’s and Master’s degrees. Since 2011, he has developed extensive experience as a researcher at CIES-Iscte, contributing to national and international projects in the fields of political attitudes, political elite behaviour, inequality, and public policy.

From 2014 to 2017, he served as a Teaching Assistant at Iscte, supporting courses in research methods, electoral behaviour, ideological analysis, and comparative politics. Between 2019 and 2023, he worked as a Research Fellow at the Observatory for Democracy and Political Representation, where he played a central role in the design, implementation, and analysis of Portugal’s Political Elite Surveys, as well as in several cross-national research initiatives.

His doctoral research examined long-term trends in social tolerance across 31 European democracies (1981–2021), exploring the moderating roles of age, socioeconomic performance, and the influence the far-right exerts in defining social tolerance. Beyond his dissertation work, he has authored and co-authored numerous publications on political culture, party politics, elections, democratic legitimacy, inequality, and methodological innovation in comparative research.

Viriato’s broader research interests span public opinion, migration and associativism, agenda-setting and public policy, political preferences and decision-making, personality and political behaviour, and deliberation and participation. He continues to pursue research at the intersection of democracy, inequality, and political attitudes, with a strong commitment to rigorous methodology and evidence-based analysis.