Differences,characteristics and causes of the inter-county's economy in Liaoning province

The new economic geography hold that moderate differences in regional economic development facilitate the efficient allocation of resources and the shift of industries in regions,but the oversized differences will weaken the existing division of labor and economic cooperation,or even do harm to the regional economic and social stability.Taking the countries(including counties,county-level cities and municipal districts) of Liaoning as the study object,using 85 counties' standard deviations and the coefficients of variation of GDP per capita as the measuring indicator form 2001 to 2010,this paper reveals and analyzes the evolutionary characteristics of Liaoning province county economy that the absolute differences vary with time and gradually expanded,the relative difference is narrow.The 10 economic indexes of 85 counties in Liaoning province are analyzed with principal component analysis by using the SPSS17.0 software,the finding shows that these county regions in Liaoning province are divided into 4 types which are well-developed region,developing region,generally region and less developed region,believe that the generally and less developed regions are the outlying regions of the ring and irregular distribution of the well-developed and developing regions,and the natural environment,geographical location and government policy are the combined results of the major factors in differences of various types.