Demographic differences

Men have a higher search profile than women. More men than women use search engines and use them more often.

Demographic differences

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.

Demographic differences are conducted after a census to estimate how much over or undercounting took place.

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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.

Demographic differences

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.

Demographic Differences in Sentencing | United States Sentencing Commission

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.

The replacement level fertility, the average number of children women must have in order to replace the population for the next generation.The report’s Appendix contains tables with detailed demographic data on each of the then groups. Gender.

Demographic differences

The high-tech groups tend to be dominated by men, but there are only small gender differences when it comes to cell phone use. The development of the typology itself did not include demographic factors. A person’s gender, race, income, or educational level did not determine the group in which someone was slotted.

In prior sections, the discussion of the demographic make up of each group sought to fill out the portrait of. Personal experiences do not provide the only markers of interest in finding social entrepreneurs, however.

Scholars rightly care about demographic characteristics such as age, gender, race, class, income, marital status, and so forth, particularly when these characteristics are related to broader economic and social context.

Demographics Definition | Investopedia

These demographic differences may affect how an individual plans for the future. People’s ideas of themselves in the future, or their possible selves, have also been shown to influence planning behavior.

Demographic Differences in Sentencing Summary (Published November 14, ) For this report and in its prior two reports (see below), the Commission used multivariate regression analyses to explore the relationships between demographic factors, such as race and gender, and sentencing outcomes.

A stationary population, one that is both stable and unchanging in size (the difference between crude birth rate and crude death rate is zero).

[16] A stable population does not .

Demographic Differences in Sentencing | United States Sentencing Commission