采用1990～2009年黔川桂三省三大需求与地区生产总值的时间序列数据，运用统计比较与计量比较相结合的研究方法，对三省三大需求与经济增长的关系进行了比较研究．研究结果显示：消费对三省经济增长的推动作用不断降低，但对贵州经济的影响仍较显著；投资已成为三省经济增长的最主要动力；从经济增长方式上看，三省经济的增长方式都已经发生了明显的转变，出口对三省经济增长的推动作用不明显．%Relationship of the key demands and economic growth in Guizhou, Sichuan and Guangxi is examined based on relative time series data from 1990 to 2009 from a perspective of statistical and econometric comparison. The results show that the positive effect of consumption on economic growth in the three provinces is on the decrease. However, consumption is still playing a vital role in economic growth in Guizhou. On the other hand, investment is becoming the driving force of economic growth in the three provinces. It is also held that the pattern of economic growth in the three provinces has changed dramatically, and export plays a minor role in economic growth of the three provinces.
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