Study And Design Of Retaining Structures For An Excavation In A Subway Station In Beijing

The participants of the re-guarantee system are in a situation that their earnings and risks are imbalance. Earnings, bank earnings are the highest, the guarantee agencies take second place, and the re-guarantee agencies earn lowest. On the contrary, the risk of bank is the lowest, while the risk of re-guarantee agencies is the highest. This obviously goes back on the basic principles of economics. At present, the re-guarantee system operate on the promise of government capital support, but in the long run, it is necessary to solve the earnings and risks imbalance problem to help small and medium-sized enterprise financing. Thus, the view point of this article is meaningful.The article takes the problem that the re-guarantee system participants’ earnings and risks are imbalance as breakthrough point, using the value recognition theory, risk shifting theory and credit rationing theory, analyzing the effect factors of re-guarantee system participants’earnings and risks on the basis of research and analysis of the present situation. Then builds revenue models of bank, guarantee agencies and re-guarantee agencies, and finds the key factors which affect every participant’s earnings and risks, including guarantee agencies and bank risk allocation proportion, and re-guarantee agencies and guarantee agencies risk allocation proportion. Furthermore, with the help of data and graphics, analyzes the change trend of every participant’s earnings and risks when the key factors changes, and draws the conclusion that reduce the risk of the bank and guarantee agencies risk allocation proportion or reduce the guarantee agencies and re-guarantee agencies risk allocation proportion can solve the imbalance problem.Finally, with the aid of bargaining model in the game theory, the article discusses the game process between bank and guarantee binding body, as well as guarantee agency and re-guarantee agency. And find the best risk allocation proportion which can be realized in reality that checks the conclusion below. In addition, the effect of reducing risk allocation proportion becomes less obvious, it is necessary to combine the method with other measures to promote the development of the re-guarantee system. Totally, the article aims to optimize the re-guarantee system and provide the theory and intelligence support for formulating the re-guarantee policy.