以新疆1986-2010年固定资产投资总额和国内生产总值为依据,对二者之间的关系进行协整检验、格兰杰因果关系检验并建立误差修正模型。结果表明,新疆固定资产投资与经济增长之间存在着长、短期均衡关系和双向因果关系。今后新疆在加大固定资产投资规模的同时,应注重提高投资效率,优化投资结构。 Based on the total investment in fixed assets and the gross domestic product from 1986 to 2010 in Xinjiang, the paper tests the cointegration between the two and Granger causality test to establish the error correction model. The results show that there is a long-term and short-term equilibrium relationship and a two-way causal relationship between investment in fixed assets and economic growth in Xinjiang. In the future, while increasing the scale of investment in fixed assets, Xinjiang should pay attention to improving investment efficiency and optimizing investment structure.