| The development difference of national region economy is continuously prominent, especially in Guangdong, which has become one of dilemmas in sustainable development continually; many scholars have carried on the detailed analysis regarding this. But the majority of research results mainly concentrate in the general outline to the region economy development difference universality, based on the foundation data above administration unit. Because the economical development has its particularity between the city and country in various provinces, if we neglect the difference, then the result will differ from the reality. Therefore, it is necessary to take the research foundation using the county level administrative unit data, emphatically concentrate on in the interior difference of the simplified region. Take the Guangdong region as the object, analyze the background and formation of the difference, and also elaborate the mechanism and the evolution. Besides, the article emphatically analyzes the differences among the four regions in Guangdong as well as the industry transfer feasibility of pearl delta. Therefore, select this topic will have the strong practical significance and the guiding sense in the premise of advocating establishing the harmonious society and reducing the income differential.The full text divides into five major parts, the first part is an introduction, mainly elaborated this article research background, identify the correlation concept of Guangdong region and economical development difference foundations, explain the research key, object, goal as well as corresponding technique. The second part studies and evaluates the research on domestic and foreign region economy development difference, understands the present research progress and situation in Guangdong region in order to provides the basis and mentality for the research. The third part elaborates the weight target of Guangdong region economy development, and emphatically analyzes the present situation on region development difference. Utilizes the actual average per person GDP target to analyze quantitatively the absolute difference, the relative difference from1990 to 2005 in Guangdong; Uses the THEIL index to measure inter-area difference of four big regions (pearl delta, east wing, west wing, north mountainous area); Constructs the target system about region economy development, using the principal components analytical method to rank the Guangdong various urban economy development, initially obtains the crosswise difference among the four regions in 2005. In this foundation, analyzes the contribution degree. The fourth part, analyzes the reason why the economical development difference expanding from 1990 to 2003, and elaborates difference reducing in near two years. The fifth part gives the countermeasure to reduce the economical difference among the Guangdong region and realizes the region-coordinated development. |