基于Granger因果检验的农村金融发展与经济效率提升研究

以协整检验理论为基础,采用Granger因果检验法,选取金融相关比率（FIR）、金融效率水平（LFE）、金融发展水平（LFD）等为度量农村金融发展的指标,采集1979～2007年的农村贷款余额（RLB）、存款余额（RDB）、农村总产出（TRO）、固定资产投资（FAI）、金融相关比率（FIR）、经济效率（EE）、金融效率（LFE）和金融发展水平（LFD）数据,用图示法直观的表达了相关指标的历史轨迹及发展趋势,并用Granger因果检验法实证检验了1979～2007年我国农村金融发展水平与农村经济效率之间的关系。结果表明,农村金融发展水平对农村经济增长作用显著,而农村经济增长对农村金融发展却没有显著影响;农村金融发展对农村经济效率提升作用不显著。由此得出结论：虽然农村金融发展对农村经济的发展具有一定贡献,但这种贡献仅仅体现在总量而非效率方面。为此,应进一步强化金融发展对经济增长效率的提升作用,逐步构建农村金融与经济发展的良性循环体系。

Rural Financial Development and Rural Economic Efficiency Improvement Based on Granger Causality Test

Based on the co-integration test theory,Financial Interrelation Ratio (FIR) ,level of financial efficiency (LFE) ,level of financial development (LFD) and other indices evaluating the rural financial development are selected by Granger Causality Test.The rural loan balance (RLB) ,rural deposit balance (RDB) ,total rural output (TRO) ,fixed assets investment(FAI) ,Financial Interrelation Ratio (FIR) , economic efficiency (EE) ,level of financial efficiency (LFE) ,and level of financial development (LFD) in the years 1979-2007 are collected.Graphical method intuitively reflects the development trend and historical track of relevant indices; and Granger Causality Test verifies the relationship between rural financial development level and rural economic efficiency in the years 1979-2007.Result shows that rural financial development level has significant impact on rural economic growth,but rural economic growth has no significant impact on rural financial development; and rural financial development also has insignificant promotion impact on rural economic efficiency.Thus,conclusions are obtained.Although rural financial development has made certain contribution to the development of rural economy,this kind of contribution is only reflected in total quantity,but not efficiency.Therefore,government should further strengthen the promotion function of financial development for economic efficiency,and gradually establish a virtuous circle system for rural finance and economic development.