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Blau Space
Blau space consists of the multidimensional coordinate system, created by considering the set of socio-demographic variables as dimensions. All socio-demographic characteristics are potential elements of Blau space, including continuous characteristics such as age, years of education, income, occupational prestige, geographic location, and so forth. In addition, categorical measures of socio-demographic characteristics such as race, sex, religion, birthplace, and others are Blau dimensions. "Blau space" is a theoretical construct which was developed by Miller McPherson and named after Peter Blau. It was later elaborated by McPherson and Ranger-Moore. The organizing force in Blau space is the homophily principle, which argues that the flow of information from person to person is a declining function of distance in Blau space. Persons located at great distance in Blau space are very unlikely to interact, which creates the conditions for social differences in any characteristic th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coordinate System
In geometry, a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space. The order of the coordinates is significant, and they are sometimes identified by their position in an ordered tuple and sometimes by a letter, as in "the ''x''-coordinate". The coordinates are taken to be real numbers in elementary mathematics, but may be complex numbers or elements of a more abstract system such as a commutative ring. The use of a coordinate system allows problems in geometry to be translated into problems about numbers and ''vice versa''; this is the basis of analytic geometry. Common coordinate systems Number line The simplest example of a coordinate system is the identification of points on a line with real numbers using the ''number line''. In this system, an arbitrary point ''O'' (the ''origin'') is chosen on a given line. The coordinate of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demographics
Demography () is the statistical study of populations, especially human beings. Demographic analysis examines and measures the dimensions and dynamics of populations; it can cover whole societies or groups defined by criteria such as education, nationality, religion, and ethnicity. Educational institutions usually treat demography as a field of sociology, though there are a number of independent demography departments. These methods have primarily been developed to study human populations, but are extended to a variety of areas where researchers want to know how populations of social actors can change across time through processes of birth, death, and migration. In the context of human biological populations, demographic analysis uses administrative records to develop an independent estimate of the population. Demographic analysis estimates are often considered a reliable standard for judging the accuracy of the census information gathered at any time. In the labor fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
