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Urban aggregation effects can usually bring more employment opportunities、larger economic diffusion effect and higher scale income。Research on element agglomeration，You can contain density、frequency、The "three degrees" framework of concentration。Where，Population density refers to the number of population on the unit area of ​​the unit，It helps to discuss the level of urban population agglomeration。

To observe the evolution trajectory of the level of population agglomeration，We use the sixth and seventh population census data，Calculated the population density of 337 cities across the country，It is found that the overall population density of our country is a trend of decreased coastal to the inland，and the area occupied by different density cities presents Bet365 app download obvious pyramid distribution。If the population density is used as the measurement standard，Can further divide these cities into high density (more than 2000 people/square kilometers)、Medium high density (500-2000 people/square kilometers)、Low low density (100-500 people/square kilometers) and low density (below 100 people/square kilometers)。For the past 20 years，High -density and high -density cities keep rising overall，The number of low -density cities tends to stabilize after rapid decline。Urban population density leap upwards dominates the basic process of changes in cities at all levels，Especially the average population density of high -density cities increases a large increase，It shows that the population is still gathered in high -density areas。From the level of GDP growth rate of different population density cities，The four levels all have a downward trend。But from the perspective of GDP per capita，Except for low -density cities，The per capita GDP of other levels of cities bet365 Play online games is always growing in a state of growth，and the growth slope gradually differentiated after 2013-2014。other，Population density and per capita GDP are related to digital linearity，Jianjian District Land RMB two、GDP and the employment density of the corresponding industrial industry have significant positive correlation with digital linear，Population density and per capita income、Per capita consumption level also shows the same situation。

In order to better measure my country's urbanization level，We have built the concept of "dense population"。Cities that can define the population density than 500 people/square kilometers as a dense city，The total number of resident population of these cities is referred to as dense number，The dense population is equal to the proportion of the number of dense people accounting for the total population of the country，It can be used as a characteristic of the national population agglomeration level。2000-2020，The number of dense people bet365 Play online games in my country has increased from 440 million to 711 million people，The dense rate increased from 34.7%to 50.27%; the increasing rate of urbanization rate is faster than the increase rate of the dense population，Explain that some urbanization is completed in areas with relatively low population density。For some areas that have been completed in urbanization，Its population agglomeration level still has the potential to continue to improve。

According to the above study，We can get six policy meanings。First，Realizing the increase in urban population density is to increase the productivity of full factor、The only way to achieve high -quality development，It is also the logical basis for us to promote the process of urbanization。Departs or deviates from this direction，It is not conducive to the high -quality development of economic and social。2，In recent years，Metropolitan cities and urban agglomerations have achieved rapid development，An important reason is the population density、Bet365 app download Further improvement of employment density，Then show higher economic efficiency and competitiveness。third，At this stage, my country's urban population density is generally low，There is still much room for improvement，Some high -density building areas are also facing reasonable avoidance problems。fourth，The next step should be removed that is not conducive to population and labor flow、Institutional constraints of urban population density，Focus on accelerating the reform of the household registration system，Provide equal basic public services for migrant workers group。Fifth，Low -income people enter high -density cities through flow，will increase their employment opportunities and income levels，It is conducive to narrowing the income gap，Expand the middle income group，Help common prosperity。Sixth，Through population flow，Improve urban population density and productivity，will drive the optimized configuration of the population Bet365 lotto review and other resources across the country，All places will also seek to develop its own characteristic advantageous industries，Reduce homogeneous layout，The gap between the per capita income level between regions tends to reduce，This is exactly what we promoted the development of regional coordinated development。