Asymmetric Information, Signaling, and Optimal Corporate Financial Decisions
探讨当公司内部人比外部投资者更了解公司未来盈利前景时，财务工具如何作为信号机制向市场传递公司真实价值，并分析这种信号传递的成本与收益。
As is shown in the financial literature, the assumption of perfect and costless information often leads to the conclusion that corporate financial decisions are inconsequential to the value of the firm (e.g., Stiglitz [20] and Fama [6]). This conclusion seems to be in direct contradiction with the observed behavior of corporations that allocate real resources to implement financial policies. The gap between theory and observed behavior is bridged by introducing various frictions and market imperfections. A growing number of studies examine the optiraality of financial decisions when the assumption of perfect and costless information is replaced by allowing for informational asymmetry. The asymmetry is assumed to exist between corporate insiders who possess superior information about the firm's future earnings prospects and outside investors. The emphasis in this literature is on the ability of financial instruments to serve as signaling devices through which the true value of the firm can be revealed to the market without moral hazard or disclosure of confidential information. Although the signaling process is typically considered to be costly, it is advocated that firms may be better off if they employ this mechanism rather than reveal reliable, but confidential information, or not disclose at all.