The "Weakening" of Relationship Lending and Credit Rationing -The Credit Rationing Model Aiming at Small and Middle-sized Enterprises

In the bank credit-based economy, bank credit rationing actions influence corporate finance greatly. The existing credit rationing model shows that there are logical relations between the motivations and actions of bank loan and overall corporate finance, however, the detailed explanations of the action mode of credit rationing do not exist under the condition of relationship lending model. Based on existing researches, this article built a "weakening" credit rationing model by introducing elements such as "small and middle-sized enterprises", "asymmetry information" and "relationship lending". The results show that relationship lending influences the contract feature, bank monitor cost, bank income function and bank loan supply in sequence.