Department of Geography, National Technical University, Athens City, Greece
Received: 11-Jan-2022, Manuscript No. JSS-22-51510; Editor assigned: 13- Jan-2022, Pre QC No. JSS -22-51510(PQ); Reviewed: 27- Jan-2022, QC No. JSS -22-51510; Accepted: 31-Jan-2022, Manuscript No. JSS -22-51510(A); Published: 7-Feb-2022, DOI: 10.4172/ J Social Sciences.8.1.e001.
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The term "demography" comes from two Greek words: Demas, which means "people," and graphy, which means "to sketch or write." As a result, it means to depict or write about individuals. Economists, geographers, social scientists, and others have defined this term in their own way, according to their own convenience and point of view. Obviously, some definitions have a very tight focus on the issue, while others have a very broad one. The following are some of the most important definitions that have been presented in this regard. Demography is defined as the scientific study of human populations, primarily in terms of their size, structure, and development, according to a multilingual demographic dictionary.
The multilingual demographic dictionary, on the other hand, differentiates between different aspects of demography by defining demo-graphic statistics, economic demography, and social demography separately; the latter two imply the study of relationships between demographic and economic and social phenomena. Unfair takes a more limited view of demography, describing it as "the statistical description and analysis of human populations." Demography is the study of human population statistical methods, especially the measures of population size, growth, and decrease, proportions of living beings or living within the same area or region, and the related functions of births, deaths, and marriage[1-4].
The size composition and distributions of a population, as well as changes in these elements through time and the reasons of these changes are of interest to the population researcher. In the conclusion, they are fascinated in these developments because they affect human welfare. The focus was on population numbers, demographic composition, and population distribution. Demography is a numerical study of the state and movement of the human population, including census enumerations and registration if viral processes are involved, as well as any other quantitative analysis of the state and movement of the population based on basic census and registration data.
This definition outlines the history of demography as a subject and demonstrates its strong relationship to statistics. Demography can thus be thought of as a biological book that keeps track of and analyses the population of humans and its vital activities on a constant basis. Other authors have adopted a more complete approach to defining demography, encompassing its nature and scope more clearly. Demography, by another definition, encompasses both demographic analysis and population research[5,6]. A demography board research looks at both qualitative and quantitative characteristics of population. Demography is the mathematical and statistical study of the human population's size composition and special distribution, as well as changes in these elements through time as a result of the five processes of birth, death, marriage, movement.
Its long-term purpose is to build theories to explain the events that it records and compares, while maintaining a continuous description and in their net effect. Demography does not deal with individual behavior, but rather with groups of people or even parts of groups of people. Demography is the study of human population numbers. P6opulations are more than just a collection of individuals; they are ordered, coherent systems with a greater entity than the sum of the individuals that make them up.
The science of population is known as demography. Demographers study three key demographic processes: birth, migration, and ageing, in order to better understand population dynamics (including death). All three of these processes influence population changes, such as how people live on the planet, establish nations and communities, and build culture. The majority of the research in this topic is focused on people, but there is also the specific field of biodemography. Demographers are well-known for analysing populations, but they can also draw conclusions about individuals within those communities. This is because many of the regularly used data in demography, such as life expectancy at birth or the fertility rate, can be translated from population-level demographic trends into assertions about the ordinary person. While demographers are unable to provide political advice on how to address demographic change, they do endeavour to characterise the phenomena that accompany it and to comprehend its origins. Modern demographic study encompasses several scientific fields, including mathematics, economics, and other social sciences, geography, and biology, by utilising accurate data and statistical analysis of this data.
Demographers are interested in the empirical study of population dynamics; that is, they look at population drivers and consequences such as size, composition, how populations change over time, and the factors that influence such changes. Demographers collect, present, and analyse information about people's basic life events and experiences, such as birth, marriage, divorce, household and family formation, migration, employment, ageing, and death[8-10]. They look at population compositions by sex, age, race, ethnicity, occupation, education, religion, marital status, and living arrangements, among other things. Demographers also look at population distribution by region, country, province or state, urban or rural area, and neighbourhood. Censuses, vital registration systems, national registers, and surveys provide the majority of demographic data.