尼日利亚农业信贷担保计划绩效分析:协整的边界检验方法

O. Akinrinola, A. Okunola
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引用次数: 3

摘要

本研究考察了作为尼日利亚联邦政府主要信贷政策的农业信贷担保计划(ACGS)的绩效。它成立于1977年,但于1978年开始运营。该研究使用了从国家统计局2014年公报中提取的1978年至2014年的时间序列数据。提供的贷款总量和数量被用来代表该计划的实力,而农业对GDP的贡献被用来代表农业生产力。采用协整的ARDL(Bounds)检验方法研究了ACGS与农业增长的长期和短期动态。估算结果表明,贷款总量、贷款总量与农业生产率之间存在长期关系。长期弹性表明,从长远来看,贷款总量不会对生产率产生显著影响,而贷款总量与生产率有显著的长期关系。在短期弹性中,贷款总量与当年生产率的关系并不显著,而在过去四年中是显著的。在过去的2年和3年中,贷款受益人的总数与生产力呈负但显著的关系,而在过去的一年中,这种关系也呈负但不显著。然而,本年度发放的贷款总额与生产率之间存在着积极而显著的关系。调整速度,ECT(-1)值-0.1991表明,该模型将以19.91%的速度从短期不平衡回归长期均衡。关键词:农业信贷,农业信贷担保计划,ARDL,贷款量。
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Performance analysis of Nigerian agricultural credit guarantee scheme: Bounds test approach to cointegration
This study examined the performance of the Agricultural Credit Guarantee Scheme (ACGS) which is the major credit policy of the Federal Government of Nigeria. It was established in 1977 but started operation in 1978. Time series data from 1978-2014, extracted from the 2014 bulletin of the National Bureau Statistics were used for the study. Total volume and number of loans given were used to proxy the strength of the scheme, while the contribution of agriculture to GDP was used to proxy agricultural productivity. ARDL (Bounds) test approach to cointegration was employed to investigate both long and short run dynamics of ACGS and agricultural growth. The estimated results revealed that there is a long relationship among the total volume of loans, total number of loans and agricultural productivity. The long run elasticity showed that total volume of loan will not significantly influence productivity in the long run while the total numbers of loans have a significant long run relationship with the productivity. In the short run elasticity, total volume of loans was not significant with productivity in the current year while it was significant in the past four years. The total number of loan beneficiaries had a negative but significant relationship with productivity in the past 2 and 3 years while the relationship in the past year was also negative but insignificant. However, there was a positive and significant relationship between total number of loans issued and productivity in the current year. The speed of adjustment, ECT(-1) value of -0.1991 shows that the model will return to long run equilibrium at the speed of 19.91% from short run disequilibrium. Key words: Agricultural credit, Agricultural Credit Guarantee Scheme (ACGS), ARDL, loan volume.
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