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媒体集团化、地方新闻与资本市场后果

Media Conglomeration, Local News, and Capital Market Consequences
Management Science · 2025 · Travis A. Dyer、Mark H. Lang、Jun Oh

中文摘要

我们考察新闻媒体整合对本地企业报道的影响及其对企业、投资者和资本市场的后果。利用电视文字稿,我们发现,在与Sinclair收购相关的本地电视台整合之后,对本地企业的报道大幅下降。在处理组地理区域内的企业,本地信息搜索、机构投资组合的本地偏好以及整体散户交易均有所下降。结果在小型企业、事前收视率较高的电视台以及本地报道下降幅度较大的电视台中最为显著。我们的结果为媒体整合对本地企业报道、企业、投资者和资本市场的后果提供了洞见。

Abstract

We examine the effect of news media consolidation on local business coverage and its consequences for firms, investors, and capital markets. Using television transcripts, we find a substantial drop in coverage of local firms following the consolidation of local television stations associated with Sinclair acquisitions. Local information search, institutional portfolio local bias, and overall retail trading decrease for firms in treated geographic areas. Results are most pronounced for small firms, for stations with higher ex ante viewership, and for stations with greater reductions in local coverage. Our results provide insight into the consequences of media consolidation for local business coverage, firms, investors, and capital markets.
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