The research results show that the error—correcting model may not exist in arbitrary non—linear cointegration system .
指出并非对任意非线性协整系统，都存在误差校正模型的表现形式。
The study also USES cointegration test, Granger causality test as measurement methods. It tries to study new perspective on clear ideas and use scientific research methods.
研究还采用了协整检验和格兰杰因果关系检验等计量方法，力求做到研究视角新颖、研究思路清晰、研究方法科学。
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