Political polarization in financial news
比较《华尔街日报》和《纽约时报》对同一公司财经新闻的报道，发现存在明显的政治极化，这种分歧导致政治极端公司的异常交易量增加，揭示了投资者分歧的新来源。
Comparing coverage of the same corporate financial news by the conservative Wall Street Journal and the liberal New York Times, we find strong evidence of political polarization in their reporting on both the intensive and extensive margins of coverage. We show that this politics-induced disagreement in corporate financial news leads to an increase in abnormal trading volume for the most politically extreme firms. Our results highlight a new source of investor disagreement, arising out of polarized reporting of corporate financial news, that generates trade among investors.