Facebook vs Twitter: the differential relationship with mass attitudes about democracy in Latin Americas
研究了Facebook和Twitter上不同的信息流动模式（自下而上与自上而下）如何影响拉丁美洲18个国家民众对民主的看法，发现Facebook与负面评价相关，Twitter与正面评价相关。
Purpose We argue that the information flow on Twitter is largely driven by elite communication with a top-down flow, while Facebook’s bottom-up flow is driven by mass public communication. Both are crucial news sources for democratic processes in Latin America. We explore how exposure to these flows affects opinions on democracy across 18 countries with varying democratic conditions. Design/methodology/approach Using mixed-effects models, our analysis draws on survey data from the 2018 Latinobarómetro paired with democracy measures from the 2018 Varieties of Democracy. Findings The results indicate that Facebook’s bottom-up communication correlates with negative perceptions of democracy, whereas Twitter’s top-down model correlates with more favorable views, especially among mass consumers. However, these differences are inconsistent across demographic factors. Research limitations/implications Cross-sectional survey data limits causal claims. Longitudinal data could provide stronger insights into the mechanisms underlying the observed relationships. Practical implications Understanding how different platforms influence democratic attitudes can inform strategies for political communication and digital governance in Latin America. Policymakers should consider platform-specific interventions to promote democratic engagement. Originality/value This study adds to the limited research on platform differences in political public opinion, particularly in Latin America, and highlights the need to explore mechanisms of change across various social media platforms.