It is frequently used as a business marketing tool to determine the best way to reach customers and assess their behavior. Segmenting a population by using demographics allows companies to determine the size of a potential market. Market segments may identify a particular age group, such as baby boomers born or millennials bornthat have certain buying patterns and characteristics. The common variables that are gathered in demographic research include age, sex, income level, race, employment, location, home ownership and level of education.
Direct methods[ edit ] Direct data comes from vital statistics registries that track all births and deaths as well as certain changes in legal status such as marriage, divorce, and migration registration of place of residence.
In developed countries with good registration systems such as the United States and much of Europeregistry statistics are the best method for estimating the number of births and deaths.
A census is the other common direct method of collecting demographic data. A census is usually conducted by a national government and attempts to enumerate every person in a country.
In contrast to vital statistics data, which are typically collected continuously and summarized on an annual basis, censuses typically occur only every 10 years or so, and thus are not usually the best source of data on births and deaths.
Analyses are conducted after a census to estimate how much over or undercounting took place. These compare the sex ratios from the census data to those estimated from natural values and mortality data. Censuses do more than just count people.
They may also collect data on migration or place of birth or of previous residencelanguage, religion, nationality or ethnicity or raceand citizenship.
In countries in which the vital registration system may be incomplete, the censuses are also used as a direct source of information about fertility and mortality; for example the censuses of the People's Republic of China gather information on births and deaths that occurred in the 18 months immediately preceding the census.
Map of countries by population Rate of human population growth showing projections for later this century Indirect methods[ edit ] Indirect methods of collecting data are required in countries and periods where full data are not available, such as is the case in much of the developing world, and most of historical demography.
One of these techniques in contemporary demography is the sister method, where survey researchers ask women how many of their sisters have died or had children and at what age.
With these surveys, researchers can then indirectly estimate birth or death rates for the entire population. Other indirect methods in contemporary demography include asking people about siblings, parents, and children. Other indirect methods are necessary in historical demography.
There are a variety of demographic methods for modelling population processes. They include models of mortality including the life tableGompertz modelshazards modelsCox proportional hazards modelsmultiple decrement life tablesBrass relational logitsfertility Hernes modelCoale -Trussell models, parity progression ratiosmarriage Singulate Mean at Marriage, Page modeldisability Sullivan's methodmultistate life tablespopulation projections Lee-Carter modelthe Leslie Matrixand population momentum Keyfitz.
The United Kingdom has a series of four national birth cohort studies, the first three spaced apart by 12 years: These have followed the lives of samples of people typically beginning with around 17, in each study for many years, and are still continuing.
As the samples have been drawn in a nationally representative way, inferences can be drawn from these studies about the differences between four distinct generations of British people in terms of their health, education, attitudes, childbearing and employment patterns.
The general fertility ratethe annual number of live births per 1, women of childbearing age often taken to be from 15 to 49 years old, but sometimes from 15 to The age-specific fertility rates, the annual number of live births per 1, women in particular age groups usually ageetc.
The crude death ratethe annual number of deaths per 1, people. The infant mortality ratethe annual number of deaths of children less than 1 year old per 1, live births.
The expectation of life or life expectancythe number of years that an individual at a given age could expect to live at present mortality levels. The total fertility ratethe number of live births per woman completing her reproductive life, if her childbearing at each age reflected current age-specific fertility rates.- This paper is going to look at four types of diversity and demographic characteristics that impact individual behavior in the work place and in everyday life settings.
The four groups to be examined are Gender, Age, Geographical Differences, and Personality Traits. Demographic transition (DT) is the transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.
Restricted-use demographic microdata include the Decennial Census and other surveys of individuals and households. These data are only available to qualified researchers on approved projects and can only be accessed at secure Census Research Data Centers.
As discussed in yesterday’s post Why Use Demographic Questions in Surveys?, demographic questions are an important aspect of any tranceformingnlp.comaphic questions are designed to help survey researchers determine what factors may influence a respondent’s answers, interests, and opinions.
Create demographic surveys and learn more about your target audience.
Pick the right demographic questions and launch your questionnaire for free! Learn more about customers, clients, and market segments with demographic surveys, and do more to meet the needs of . noun. a single vital or social statistic of a human population, as the number of births or deaths.
a specific segment of a population having shared characteristics: The producers were looking for a show that would appeal to the demographic.