因此研究投入要素与经济增长的关系，具有重要的理论和现实意义。
It is significant to study the relationship between the economic growth and its devotion factors.
根据实证研究表明：影响经济增长的关键因素是提高全要素生产率(tfp)。
Many researches indicate the key factor of economic growth is the development of TFP.
根据实证研究表明：影响经济增长的关键因素是提高全要素生产率(tfp)。
Many researches indicate the key factor of economic growth is the development of TFP.
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