We gain exposure to news across a range of platforms and, within each platform, across a range of sources. How does a multi-platform media environment shape the news choices we make and the gaps that result from those choices? We address this question tracking news exposure across TV, the web, and YouTube for approximately 55,000 unique US panelists over a period of 39 months. We find important variations in the demographic profiles of those who choose to consume news within platforms and those who consume news across, casting light on the contingencies of news divides. We also show evidence of a systematic amplification effect: the slice of the population that chooses to consume news across platforms increases their overall levels of exposure, suggesting that a multi-platform media environment widens the gap between news consumers and those who decide to opt out.

中文翻译：

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更多的平台，更少的新闻关注？对美国电视、网络和 YouTube 上的新闻曝光率进行多平台分析

我们在一系列平台上获得新闻曝光率，并在每个平台内通过各种来源获得新闻曝光率。多平台媒体环境如何塑造我们做出的新闻选择以及这些选择造成的差距？我们通过跟踪 39 个月内大约 55,000 名美国独立样本作者在电视、网络和 YouTube 上的新闻曝光率来解决这个问题。我们发现，选择在平台内消费新闻的人和跨平台消费新闻的人的人口统计特征存在重要差异，从而揭示了新闻鸿沟的偶然性。我们还展示了系统性放大效应的证据：选择跨平台消费新闻的人群增加了他们的整体曝光水平，这表明多平台媒体环境扩大了新闻消费者和决定退出的人之间的差距。