Cross-Country Trends in Affective Polarization
测量了过去四十年十二个OECD国家的情感极化趋势，发现美国增幅最大，五个国家增幅较小，六个国家有所下降，并探讨了极化趋势与潜在解释因素的关系。
Abstract We measure trends in affective polarization in twelve OECD countries over the past four decades. According to our baseline estimates, the United States experienced the largest increase in polarization over this period. Five countries experienced a smaller increase in polarization. Six countries experienced a decrease in polarization. We relate trends in polarization to trends in potential explanatory factors.