A Theory of Voluntary Disclosure and Cost of Capital
This paper explores the links between firms' voluntary disclosures and their cost of capital. Existing studies investigate the relation between mandatory disclosures and cost of capital, and find no cross-sectional effect but a negative association in time-series. In this paper, I find that when disclosure is voluntary firms that disclose their information have a lower cost of capital than firms that do not disclose, but the association between voluntary disclosure and cost of capital for disclosing and non-disclosing firms is positive in aggregate.