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基于平滑转换回归(STR)模型研究了湖北省城乡收入差距、劳动力质量对经济增长的非线性影响效应.结果表明:湖北省城乡收入差距、劳动力质量与经济增长之间确实存在明显的非线性特征,以滞后两阶的城乡收入差距作为转换变量建立LSTR2模型最为恰当.研究发现:当城乡收入差距处于低机制状态时,城乡收入差距的扩大会促进经济增长;但当城乡收入差距处于高机制状态时,城乡收入差距的扩大会抑制经济增长;而劳动力质量的提高始终对经济增长起促进作用.
Based on the smooth transition regression (STR) model, this paper studies the nonlinear effects of urban-rural income disparity and labor quality on economic growth in Hubei Province. The results show that there is a clear nonlinear characteristic between urban-rural income disparity, labor quality and economic growth in Hubei Province , It is most appropriate to establish the LSTR2 model with the lagged two-stage urban-rural income disparity as the transformation variable.The study found that when the income gap between urban and rural areas is low, the widening income gap between urban and rural areas will promote economic growth. However, , The widening income gap between urban and rural areas will restrain economic growth; and the improvement of labor quality will always promote economic growth.