中国沿边开放中内陆边疆一体化效应研究

A Research on the Inland-Frontier Integration Effect under the Opening-up along Border

借助于所构建的一个3×3×3的空间一般均衡模型,通过数值模拟分析沿边开放下的内陆边疆一体化效应的结果显示,在国内市场完全分割情形,无论边境地区一体化水平有多高,经济总会收敛于唯一的长期稳定对称均衡,但随着一体化程度的加深,边疆地区的高技能工人份额逐渐增大;在没有沿边开放政策的封闭经济体中,随着区际贸易成本的降低,经济体从高贸易成本时的对称均衡,向中等区际贸易成本下的三个稳定均衡转变,再向低区际贸易成本下的核心—外围均衡结构转变;在沿边开放作用下,国际贸易成本不断降低的均衡结构转换路径与封闭条件下国内区际贸易成本下降效应一致,但不同的沿边开放水平,不稳定的均衡点所反映的边疆地区高技能工人份额不同。随着沿边开放水平的提高,边疆地区高技能工人份额不断降低,在区际贸易成本很高时,稳定均衡点所反映的高技能工人份额随着沿边开放水平的提高而增加。因此,降低国内区际贸易成本要与提高沿边开放水平同步推进,才能在边疆地区形成边缘增长中心。

This paper is to develop a 3 × 3 × 3 spatial general equilibrium model based on the perspective of spatial economy and study the inland - frontier integration effect under the opening - up border by means of numerical simulation analysis on the basis of the math model. The results show ： First, no matter how high the opening - up level along border is, the economy will always converge to a u- nique long - term stable equilibrium under the condition of complete market segmentation. But the share of high - skilled labor in the frontier area corresponding to the stable equilibrium will gradually increase along with the deepening integration of the opening - up a- long border. Second, the economy will converge to the long - term stable symmetric equilibrium at high trade costs, and will come into being three long - term economy stable equilibrium a symmetric equilibrium and two core - peripheral equilibrium structural, under the middle inter - regional trade costs, and then turn into a core - peripheral equilibrium structural with inter - regional trade liberaliza- tion completely in a closed economy with the absence of an open border policy. Third, the economy has the same equilibrium structure conversion path with the different international trade cost under the effect of the opening - up border. The share of high - skilled labor corresponding to the unstable equilibrium point is to continuously reduce with the improvement of the level of the open border at a low inter - regional trade cost ; on the contrary, when the cost of inter - regional trade is very high , the share of high - skilled labor corre- sponding to a stable equilibrium point will continue to increase.