Is the media biased against conservatives? Although a dominant majority of journalists identify as liberals/Democrats and many Americans and public officials frequently decry supposedly high and increasing levels of media bias, little compelling evidence exists as to (i) the ideological or partisan leanings of the many journalists who fail to answer surveys and/or identify as independents and (ii) whether journalists' political leanings bleed into the choice of which stories to cover that Americans ultimately consume. Using a unique combination of a large-scale survey of political journalists, data from journalists' Twitter networks, election returns, a large-scale correspondence experiment, and a conjoint survey experiment, we show definitively that the media exhibits no bias against conservatives (or liberals for that matter) in what news that they choose to cover. This shows that journalists' individual ideological leanings have unexpectedly little effect on the vitally important, but, up to this point, unexplored, early stage of political news generation.

中文翻译：

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没有自由派媒体偏见，政治记者选择报道新闻报道。

媒体对保守派有偏见吗？尽管绝大多数记者认为自己是自由主义者/民主人士，许多美国人和公职人员经常谴责所谓的高度偏见和日益严重的媒体偏见，但关于（i）许多没有回答的记者的意识形态或党派倾向，鲜有令人信服的证据。调查和/或识别为独立人士；（ii）记者的政治倾向是否影响了美国人最终消费哪些报道的报道。通过对政治记者进行的大规模调查，记者的Twitter网络中的数据，选举结果，大规模的通信实验和联合调查实验的独特组合，我们明确地表明，媒体对他们选择报道的新闻不表现出对保守派（或与此有关的自由派）的偏见。这表明记者个人的意识形态倾向对至关重要的事件几乎没有影响，但是到目前为止，政治新闻的产生尚处于探索阶段。