报纸
媒体偏见
竞赛(生物学)
透视图(图形)
经济
骨料(复合)
市场定义
广告
媒体报道
市场竞争
市场结构
微观经济学
社会学
媒体研究
政治学
业务
法学
计算机科学
市场经济
生态学
材料科学
人工智能
政治
复合材料
生物
作者
Sendhil Mullainathan,Andrei Shleifer
标识
DOI:10.1257/0002828054825619
摘要
We investigate the market for news under two assumptions: that readers hold beliefs which they like to see confirmed, and that newspapers can slant stories toward these beliefs. We show that, on the topics where readers share common beliefs, one should not expect accuracy even from competitive media: competition results in lower prices, but common slanting toward reader biases. On topics where reader beliefs diverge (such as politically divisive issues), however, newspapers segment the market and slant toward extreme positions. Yet in the aggregate, a reader with access to all news sources could get an unbiased perspective. Generally speaking, reader heterogeneity is more important for accuracy in media than competition per se.
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