Ideological Segregation Online and Offline *
利用个人和汇总数据，研究互联网如何改变美国选民的意识形态隔离，发现在线新闻消费的隔离程度低于面对面社交互动，且没有证据表明互联网随时间变得更隔离。
We use individual and aggregate data to ask how the Internet is changing the ideological segregation of the American electorate. Focusing on online news consumption, offline news consumption, and face-to-face social interactions, we define ideological segregation in each domain using standard indices from the literature on racial segregation.\n\nWe find that ideological segregation of online news consumption is low in absolute terms, higher than the segregation of most offline news consumption, and significantly lower than the segregation of face-to-face interactions with neighbors, co-workers, or family members. We find no evidence that the Internet is becoming more segregated over time.