Research On Effect Of Producer Service Industry Agglomeration To Urban Productivity

In 2014 GDP was 63.7 trillion yuan,among GDP service industry was 30.7 trillion yuan, an increase of 8.1 percent, and exceeding the same period GDP 0.7 percentage points, and the proportion of GDP reached 48.2%, while the service industry proportion of 5.6 percentage points higher than the second industry, which stood for the Chinese economy officially entered the "service" of the era, which meant that China’s economy to speed up the transition from an industrial to a service-led dominant. Service industry will become a new driving force in a period of new normal economic growth. In the case of the whole economic slowdown, the role of producer services in the middle of the service industry in the city’s economic development as bigger. Producer services agglomeration in urban, the first not only to absorb the huge labor force, but also convenient manufacturers and consumers, the exchange of information between manufacturers and vendors, reducing various transaction costs and affect economic efficiency, and thus have an impact on urban productivity. But now gathering degree of producer services is not high, and at different levels of economic development of the city has a large difference, the impact on urban productivity is also different. Therefore, it is necessary to explore the overall level of producer services agglomeration effect on city productivity, and as a basis for further study of the impact of differences in levels of economic development in different cities in the urban agglomeration of producer services productivity, in order to be able to grasp production the size of the service industry and urban economic development of the most appropriate level, positive effect on productivity largest city, and has put forward policy recommendations for economic development based on difference.Firstly, the principles of economics producer services agglomeration formed a general analysis shows the producer services cluster formation mechanism and evolution process, using the oretical Ciccone model analyzed producer service industry impact on urban productivity, and analyzes the specialization and diversification agglomeration effect on the productivity of the city, followed by five further explanation from the producer services agglomeration effect on city productivity process, and then use 2003--2013 China’s 266 cities correlative Panel Data based on Ciccone model and add some relevant control variables institutional factors, and before regression analysis using endogenous test, unit root test and cointegration test of the relevant panel to make the relevant test data to ensure true and reliable regression results, and from the overall sample and the sample packets to illustrate the influence of productive service industry on urban productivity and the use of geographic regions and cities a double standard grading scale to verify the degree of economic development in different cities in productive service industry has discrepancy on urban productivity. Studies have shown that, from a nationalperspective, while increasing the level of productive service industry can significantl promote urban productivity; whether it is in accordance with the geographical division is to be divided according to city size grading, in essence it is in accordance with the degree of economic development of the city to divide. Overall, the combined effect of producer services with a reduced level of urban economic development decreases.Finally, providing the relevant policy...