| There are many factors can influence urbanization, among these, economic factor is a key factor. Economic development is the fundamental motivity of population urbanization and chief precondition of the engenderment and development of cities. The progress of population urbanization can magnify urban effective demand, absorb rural over plus labor force, and promote the adjustment of economic structure and the development of market economy. Population urbanization and economic growth must progress together, and over-urbanization and under-urbanization are both not good to the healthy development of a city. This paper is divided into five parts. The first part explains the necessities and importance to Chinese economic growth of harmonious development of population urbanization and economic growth. The second part introduces basic concepts and relative theory of population urbanization and economic growth. First, concepts introduction. From the demology view, city is a inhabitant yarding up place that has population scale to some extent and most of all be composed of non-rural population, and it is a special form of assemblance; the essential of urbanization is the process of population economic activity and life style non-ruralization, and the content includes population section structure, industry structure and life style urbanization. economic growth and economic development meaning , index of distinguishing and weighing . Second, people's urbanization and relevant theories of the economic growth. It is population urbanization theory of the at first: (1)William. Louis' urbanization theory, propose the urbanization is not merely that people are centralized to the city, still include the development of the city, and bring the change of the life style from this. (2)Narl. Andersen's urbanization theory, propose the phenomenon of the urbanization is not interpreted as population to the city centralized single and purely, and include the changes of these individuals or the attitude to job of group (values). Then a economic growth theory: (1) Harold-Domar mode: The rate of increase of GNP is determined together by the national deposits rate and national capital -the proportion of the output; (2)The new classical economic growth model has been proposed " the technological progress has great contribution to the economic growth " for the first time, (3)Solow's economic growth model has proposed analyzing the theory in economic growth factor, state the science and technology , work and role in economic growth of a factor of throwing in amount of capital. It is population urbanization and relevant theories of economic growth finally: (1)H.B.Chenery theory. The urbanization of population on the money receive and per capita GDP relation theory, have proposed the urbanization rate and general corresponding relation of per capita GDP; (2)Population between urbanization and economic growth mutually promote economist of law American Lampard prove between economic growth and relation and Northam of urbanization think the urbanization Between the level and economic development level is a kind of rough linear relations, namely the higher the economic development level is, the higher the urbanization level is. The third part are main analyze to urbanization level, people of developed country, and economic growth relevant to China mainly. In the historical process of the urbanization, the factor influencing urbanization is quite a lot,and very complicated. For instance economic growth, industrial structure , people's scale , city size ,etc., but after all, the impact on urbanization of the economic growth plays a decisive role. But the index which reflects the economic development level involves a lot, among them the most important index is GDP, it can than synthesize in an all-round way reflecting a national economic growth level. Through reviewing at developing stage at China's population urbanization, we have drawn the urbanization levels of people of our country and increased rapidly since reform and opening-up, China per capita GDP 1000 dollars, with chenery standard model is it take to compare, population urbanization level should close 70% to be about, but the real cities of people of our country turn competence into 40.53%, compare with urbanization levels of people of developed country, undeveloped country, the level of urbanization of our country is low, an industrialized level that lag behind. Unfavorable to economic growth in this way, is unfavorable to the modernizations of the people's lives too. Regard urbanization level (%) over the years in our country as the independent variable (x), our country the over the years to be per capita for GDP (U.S. dollar) for because separately data not relevant against our country carry on return not linear of stage by stage variable (Y), then carry on linear treatment , draw the equation; The analysis result shows , the urbanization levels of people of our country and per capita GDP are highly relevant, the law of this one that is with foreign urbanization level and economic growth is the same, it is the high positive correlation. After analyzing relevantly to of our country population urbanization competence and economic growth, I analyze to three developed countries in U.S.A. , Britain , Canada, the conclusions analyzed and Chinese conclusionsare unanimous, that is the urbanization level of population and per capita GDP is highly relevant, that is to say per capita GDP is in direct proportion to index value of the urbanization level of population. Through analyzing synthetically , make us understand that there are intricate relations between people's urbanization and economic development. First, according to urbanization level and per capita gross national product, urbanization level and per capita gross national product present the positive correlation relation. The strong positive correlation relation between urbanization level and per capita GDP, has explained the total trend of urbanization development and some objective necessity independent of people's will. Second, also present the positive correlation relation between urbanization level and national living standard. Namely the poorer a country is, may be low its urbanization level; On the contrary, the lower the urbanization level of a country is, may be poor too the country. As to this, Canadian J.U.Marshall has made penetrating analysis in the book "structure of the urban system", conclusion of the positive correlation drawn between the living standard and urbanization level with very strong relation. Third, according to urbanization level and industrialized level, the higher , industrialized the per capita gross national product is, the higher the level is, the higher the urbanization level is. This is famous American development economist Malcolm.Gillies and famous economist Cheney and Hanelkat through the conclusion that is drawn after studying. Fourth, according to urbanization level and national economic structure, urbanization level and primary industry present and shoulder relevant relations, present the positive correlation relation with the secondary and tertiary industries. The fourth part is the influence analysis to that China's population...
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