采用格兰杰因果分析法，依据需求拉动和技术推动理论，对中国技术交易规模扩张的原因进行了实证检验。
It is applies Granger causality tests to test the causes of China technology markets growth according to technology demand pull and technology push theories.
理论上讲，拉动青岛GDP增长的需求动力，应是市内需求增长额与外向型产业需求增长额之和。
Theoretically, the demands of natives and outsides a re the power for the GDP increasing of Qingdao.
理论上讲，拉动青岛GDP增长的需求动力，应是市内需求增长额与外向型产业需求增长额之和。
Theoretically, the demands of natives and outsides a re the power for the GDP increasing of Qingdao.
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