In the morning of November 8, 2016, Associate Professor Zhang Zhiqiang, Renmin University of China Business School, was invited to give a lecture on "Optimal Capital Structure Model - Theory and Application" in the graduate building. More than 80 graduate students from Beijing Institute of Technology School of Management and Economics listened to the lecture.
　　Dr. Zhang Zhiqiang analyzed the paradox of "trade-off model" which is considered as the important research result of optimal capital structure, and used the option analysis method to solve the core pros and cons of debt, namely the tax saving and bankruptcy cost quantification problem, and led to a ZZ optimal capital structure model. The model promoted the development of MM theory. At the same time, the model can be directly used in the decision-making application, which is convenient for the decision-making of capital structure and also the decision-making of bank loan, such as loan interest rate decision.