Abstract：
The rapid increase in the export of high tech products in recent years is very impressive. Using the data of 20,000 firms in China’s high tech industry in 2008, applying LS and Probit models, the authors made an empirical study. The findings show that the export of China’s high tech firms did not have advantage in productivity. The productivity of export firms is lower than that of non export firms. Using four methods of measuring productivity, the authors got the same result, which shows the conclusion is reliable. The research also found that the nature of firms and the ratio of capital to labor are the major factors influencing export. The authors explored the underlying reasons for the situation and found the large number of processing firms in the high tech industry is the main reason for this phenomenon.
LIU Hai yang, LUO Yang.An Analysis of the Factors Influencing the Export of China’s High tech Firms ——A Review from the Perspective of Heterogeneous Firm Trade Theory[J] Economic Survey, 2012,V(1): 62-66
2012 
