An Empirical Examination of Conference Calls as a Voluntary Disclosure Medium

Corporate conference calls are large-scale telephone conference calls during which managers make presentations to and answer questions from various market participants, usually about earnings. In this paper, we sample 1,056 corporate conference calls made by 808 firms during February-November 1995 to provide evidence on three questions: (1) whether conference calls provide information to stock market participants, (2) whether investors have equal access to the information provided during these calls, and (3) why managers of some firms hold conference calls while managers of other firms do not. We believe this research is important because managers' use of conference calls has grown enormously, yet we know little about how these calls affect investors.1