%0 Journal Article
%T A Study on Productive Factor Efficiencies and Their Improving Potentials of Megalopolises in China in 1990, 2000 and 2006<br>中国特大城市要素效率及其提高潜力研究
%A GUO Tengyun
%A <br>郭腾云
%J 资源科学
%D 2010
%I 
%X Driven by the thought of building opening megalopolis to the outside world, most of megalopolises in China have significantly expanded in size of land and population since the early 1990s. To this end, the inputs of productive factors, such as land and capital, to the megalopolises have rapidly increased year by year. However, the productive factors, such as land and capital, are still the major limiting factors on economic and social development in these megalopolises. Therefore, it is critical for promoting economic and social development of the megalopolises, documenting the reasons and figuring out sound solutions to the shortages of land and capital to explore the economic efficiencies of productive factors and to improve potentials of the megalopolises in China. In this paper, the authors used the Data Envelopment Analysis (DEA) method to quantify the economic efficiencies of productive factors. The potentials of main megalopolises with a non-agricultural population more than one million in their urbanized areas in year 1990 were investigated in depth based on statistics in 1990, 2000 and 2006, respectively. Some interesting findings were given as follows. First, the DEA results showed that the economic efficiencies of the productive factors of megalopolises were not too high. Most of megalopolises were in DEA inefficiency, but with great potentials to be improved. Second, the reasons for these lie in the fact that both pure technical efficiencies and scale efficiencies of most metropolises were in DEA inefficiency, showing the pure technical efficiencies lower than scale efficiencies. Third, it was found that improving potentials of the productive factor efficiencies decreased progressively from Eastern China to Central China, and to Western China. The improving potentials of the productive factor efficiencies were also found to be negatively correlated with the population sizes of megalopolis. In the end, some implications were given based on the findings. First, the reasons for shortages of the productive factors, for instance, land resources, primarily lie in the fact that productive factor utilization efficiencies were relatively low. Second, the megalopolis development policies should underscore the importance on raising the productive factor utilization efficiencies through carrying out intensive use mode of productive factors in the light of sustainable development principles. Third, the base of improving the efficiencies of megalopolis productive factors rests in improvements in economic and technological levels of the megalopolises as well as the regions surrounding them.
%K DEA method
%K Productive factor efficiency
%K Improving potentials
%K Megalopolis
%K China<br>DEA模型方法
%K 要素效率
%K 提高潜力
%K 主要特大城市
%K 中国
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=3A9685E102B36F0A8C93862787294E19&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=302684F6FB4B24FF&eid=3622B70F9C54A9CC&journal_id=1007-7588&journal_name=资源科学&referenced_num=0&reference_num=18