Demography is a methodology discipline that illustrates collecting and collating reflecting the status of population phenomenon, changing process and the relationship between the former two and social economic development. It reveals the nature, law and development trend of population phenomenon through the number, an important part of the demographics, demography, as a discipline of methodology, but also an important part of social and economic statistics. Demography, as a methodology subject, first of all, clarifies the collection.
2. Content Directory
Demography, as a methodology discipline, the first is to clarify the principle and method of collecting demographic data to ensure the accuracy, timeliness and completeness of the data collected. Secondly, the collection of statistical data on the system processing and finishing, make it systematic, structured, and deepen the understanding of the phenomenon of population. Finally, in order to deeply understand and grasp the law of population development, it is necessary to study the phenomena of population, population phenomenon with social economic phenomenon between the mutual contact and mutual restriction relation analysis of the relationship between these factors and the amount of. Demographic data on the analysis of demographic data to provide a scientific and systematic methodology of the principle of population statistics is the theoretical basis for the work of population statistics and population analysis.
3. Survey Methods
(1) Demographic data collection methods, including the census, population regular statistics, the sampling survey and typical survey, as well as other methods of collecting demographic data. These methods together constitute a complete system of demographic data, which are independent of each other and linked to each other. After the Second World War, the census and the population census, the census and the sampling survey, the population statistics and the sampling survey are all used together.
(2) Summary and arrangement of demographic data, there are two types: manual collection and machine summary. Demographic provisions summary, finishing the principles and methods, to determine the demographic data to establish the classification and grouping system according to the nature and the relationship between the number of, such as urban population grouping, the birth rate Mortality packet, occupational classification, and so on.
4. Analysis Index
(3) Population analysis method. Demographic analysis is the result of the combination of statistical analysis method and population phenomenon, which is very extensive. From the analysis method, there are comprehensive index method, average method, relative number method, variance analysis method, correlation and regression analysis method, chart method, population mathematical model, etc. From the phenomenon of population, population growth rate and trend analysis, population analysis and composition (natural, economic structure, social structure) analysis, population reproduction process (birth, death, and migration) analysis, population forecast and analysis of the target, the population and economy, social analysis and so on, including the phenomena of population. Especially to population growth strategy analysis, and the ageing of the population analysis, fertility rate analysis, mortality and life analysis, population migration and urbanization analysis, family and marriage analysis, analysis of population of employment, population occupational and cultural analysis, demographic data evaluation, the more prominent. In addition, the mathematical model of population, the micro simulation of population and the method of indirect estimation are also developing rapidly.