He, Yan; Wang, Junbo; Wei, K.C. John - In: Journal of Empirical Finance 18 (2011) 1, pp. 103-116
Using a sample of 279 upgrades and 310 downgrades from 1996 to 2004, we find that bond rating changes affect the information asymmetry of stock trading and other measures of information risk. Specifically, when a firm's bond rating is upgraded, its stock information asymmetry and its analysts'...