The determination of optimal financing sources is crucial in efficient and profitable corporate affairs. In this paper, we consider a model, first proposed by Davis and Elzinga [3], which is one of the well known and pioneering optimal control models in deterministic financial modeling. We show that the problem is nonconvex optimal control problem and did attempt to improve a result obtained in
... [Show full abstract] [11] by applying the conditional gradient algorithm starting from different initial controls.