【作者(必填)】Samuel B. Bonsall IV, Jeremiah Green, and Karl A. Muller III

【文题(必填)】Are Credit Ratings More Rigorous for Widely Covered Firms?

【年份(必填)】2018

【全文链接或数据库名称(选填)】http://aaajournals.org/doi/pdf/10.2308/accr-52044