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通过建立的最优信贷供给与最优信贷需求理论模型发现,银行信贷渠道的重要性是该地区的银行和公司的大小规模的减函数。实证表明,由于银行和公司规模在我国不同地区确实存在巨大差别,货币政策信贷渠道的效率差异表现为在大银行和大公司聚集地区,银行信贷对人均生产总值不具有预测力,而在小银行和小公司聚集区,银行信贷对人均生产总值具有明显预测力。货币政策通过信贷渠道对我国区域经济产生的不对称影响,实际上越是在经济发达的地区,信贷渠道的效率越低。
Through the established theoretical models of optimal credit supply and optimal credit demand, it is found that the importance of bank credit channels is a function of the size and size of banks and companies in the region. Empirical results show that due to the huge difference in the size of banks and companies in different regions of our country, the efficiency difference of credit channels of monetary policy is manifested in the gathering area of big banks and large companies. Bank credit does not have the predictive power of per capita GDP. Bank and small company gathering area, bank credit has obvious predictive power to GDP. The asymmetrical influence of monetary policy on China’s regional economy through the credit channel actually means that in the economically developed areas, the efficiency of the credit channel is lower.