Q:

What is a demographic equation?

A:

A demographic equation is a formula that measures population change. It estimates the increase or decrease in population by adding the number of births plus the net migration to the previous count, then subtracting the number of deaths.

Demographic equations are used by businesses as well as political entities to estimate the natural increase of a specific population over a given period of time. They do not provide highly accurate results, but rather useful approximations. The net migration is determined by subtracting out-migration from in-migration of the population during that time period. The result is added to the previous count, plus births minus deaths, to give the new value.

Associated principles includes doubling time, which is the time required for a population to double assuming a constant growth rate. This is most accurately calculated by dividing the natural logarithm of two by the exponent of growth, but it can be more simply approximated by dividing 70 by the percentage of growth.

Another associated principle is zero population growth, which occurs when a population does not increase or decrease from year to year. This is the desired state of some political activists who feel that the current global population growth rate is unsustainable over the long term.


Is this answer helpful?

Similar Questions

  • Q:

    What are demographic changes?

    A:

    Demographic changes are the dynamics in the quantifiable statistics of a given population. Demography seeks to understand population changes by investigating such demographic components as gender, age, ethnicity, home ownership, mobility, disabilities, language knowledge, employment status and location. These elements and how they change constitute vital information about the population of a given location and its culture.

    Full Answer >
  • Q:

    What are demographic factors?

    A:

    Demographic factors are personal characteristics are used to collect and evaluate data on people in a given population. Typical factors include age, gender, marital status, race, education, income and occupation. Governments use analysis of the demographics makeup in a population to plan strategies and ongoing public service programs.

    Full Answer >
  • Q:

    What is demographic information ?

    A:

    Demographic information refers to the statistics that describe a population and can be used to divide that population into different groups. Examples of demographic information include age, gender, race, income, marital status, employment status, nationality and political preference.

    Full Answer >
  • Q:

    What are the different demographic groups?

    A:

    Demographic groups include the generations known as Gen Z, Gen Y, Gen X and baby boomers. Demographic lifestyle parameters include factors such as geography, disposable income, housing, leisure activities, neighborhood, purchasing power, means of transportation and family status. Demographic information is available from the U.S. Census Bureau website.

    Full Answer >

Explore