On the basis of market timing theory and target capital structure in the trade-off theories,this paper emphasizes the dual issuers and discusses the effects of some factors,such as investors' behaviors and target capital structure etc.,on management financing decisions.First,the paper makes OLS regressions to find the determinants of dual issues and how they work.And then,it makes Binary Logistic regressions to compare dual issues with pure equity issues and pure debt issues,to discover the dete...