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Population and Demographic Data

Lecture - 02. Lecture - 02. Population and Demographic Data. Aspects of Demography. Today’s Topics: D emographic- Aspects. Discussion of former study. It is clear from the foregoing lecture that:

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Population and Demographic Data

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  1. Lecture - 02 Lecture - 02 Population and Demographic Data Aspects of Demography • Today’s Topics: • Demographic- • Aspects

  2. Discussion of former study It is clear from the foregoing lecture that: The scope of demography has been classified into two sections: Macro-demography and Micro- demography. While the former includes studies of systems, cultures and societies on a large scale, then later study the individual and the family as a unit of society. Thus the later study has smaller units and it is conducted intensively. The two fields help each other.

  3. Aspects of Demography The different aspects of the study of population or social demography may be briefly described as follows 1. Size of Population. Demography is fundamentally the study of population. Population is primarily studied in the form of its size. In Bangladeshi census studies of population are undertaken after every ten years. The demographers in different countries find out the size of the population of their countries.

  4. POPULATION AND HOUSING CENSUS 2011

  5. POPULATION AND HOUSING CENSUS 2011

  6. https://www.google.com.bd/#q=current+population+of+bangladesh&*https://www.google.com.bd/#q=current+population+of+bangladesh&*

  7. Source: Google Image (Bangladesh Map)

  8. http://www.worldometers.info/world-population/bangladesh-population/http://www.worldometers.info/world-population/bangladesh-population/

  9. Aspects of Demography (II) 2. Organization of Population. Population organization includes the measurable characteristics of population of a community in a country during a particular period. These characteristics include age, sex, marital status, educational level, religion, caste or race and health, etc. These characteristics are generally changing.

  10. POPULATION AND HOUSING CENSUS 2011

  11. Aspects of Demography (III) 3. Population Distribution. The distribution of population is generally studied according to geographic areas. The measures of population distribution include percentage of population and density of population. The factors affecting population distribution are studied as geographic, social, economic and demographic. Population distribution is also studied by classification of residence. This includes rural and urban residence. It also includes the study of urban growth or urbanisation.

  12. Aspects of Demography (IV-a) 4. Fertility. An important field of demographical study is fertility. It is expressed in terms of birth rate, birth order, family size, sterility and contraception, etc. The influence of biological limits and social norms upon fertility is important. The demographer studies the reproductive span and theoretical maximum fertility. He also studies psychological, social and cultural factors affecting fertility.

  13. Aspects of Demography (IV-b) 4. Fertility (Continued…) The basic measures of fertility are the measures based upon performance during one year, such as the Crude Birth Rate (CBR), the General Fertility Rate (GFR), Age Specific Fertility Rate (ASFR), Total Fertility Rate (TFR), Gross Reproduction Rate (GRR), Sex-Age Adjusted Birth Rate, Measures based on Sex-Age distribution, Measures based on children ever born (CEB). The methods of conception control are both male and female.

  14. Aspects of Demography (V) 5. Mortality An important field of demographical study is mortality. It is measured by crude death rate and infant mortality rate. It includes the study of Sex and Age patterns of mortality, causes of death, levels and trends of mortality in a country and in the world and mortality differentials such as urban-rural and occupational, etc.

  15. Aspects of Demography (VI) 6. Migration Migration has been classified as immigration and emigration, in-migration and out-migration. The demographer studies general trend of migration, migratory movement, place and origin of destination, gross and net migration, migration interval, migration streams, etc. The sources of data concerning migration include census surveys and population registers.

  16. Net migration rates for 2016: positive (blue), negative (orange), stable (green), and no data (gray)

  17. Questions ?

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