In order to provide an effective whistle-blowing system, it is expected that companies would provide employees with a high level of disclosure regarding the whistle-blowing process. This study investigates variation in the extent of whistle-blowing disclosures. As a measure of whistle-blowing implementation, this study further examines the provision of a hotline channel. The results suggest that the extent of whistle-blowing disclosures is positively associated with the permissibility of anonymous reporting and organisational support for whistle-blowing, the number of external directors on (...) the audit committee, and the existence of concentrated shareholdings. The mere existence of whistle-blowing disclosures could simply be symbolic. The findings also indicate a greater likelihood of the provision of hotlines when companies are larger in size, have a higher level of current inventory, are cross-listed in the US, and permit anonymous reporting. (shrink)