Demography - User contributions [en]

Dependency ratio

2016-05-23T00:10:55Z

IssaRice: /* Conceptual definition */

{{ratio measure|
numerator = dependent population|
denominator = population of working age|
reporting denominator = 1|
measurement period = single point in time|
numerator type = entity|
denominator type = entity}}

==Definition==

===Conceptual definition===

Conceptually, the dependency ratio is an attempt to loosely answer the question: how many non-working (''dependent'') people need to be supported by a given working person on average? Here, "working" does not necessarily mean somebody employed outside; it also includes people who are engaged in home production. Dependent people may include children and elderly people who are either being taken care of physically or are relying on their savings or pensions to sustain their activities.

===Operationalization===

The typical operationalization of the dependency ratio is based on age, and this particular operationalization is sometimes called the '''age-dependency ratio''' to emphasize the use of age as a proxy for whether somebody is dependent. The age-dependency ratio at a given point in time for a given population is defined as the quotient:

(Number of people in the population who are younger than the lower age threshold or older than the upper age threshold)/(Number of people in the population whose age is between the lower age threshold and upper age threshold)

If we take the lower age threshold and the upper age threshold as 15 and 64 respectively (this means that a person gets to the upper age threshold on his/her 65th birthday), we get:

(Number of people in the population who are younger than 15 or older than 64 -- the latter only includes people who have had their 65th birthday)/(Number of people whose age is in the 15-64 age range -- including people who have had their 64th birthday but not yet had their 65th)

Celibacy rate

2016-05-22T20:43:13Z

IssaRice:

==Definition==

The '''celibacy rate''' of a population is defined as the fraction of the population aged 45–49 (both sexes combined) that is never-married, i.e.:

<math>\frac{\mbox{Number of never-married people ages 45--49}}{\mbox{Total number of people ages 45--49}}</math>

It may be reported as a simple fraction, as a percentage (denominator 100), or with a denominator of 1000.

Celibacy rate

2016-05-22T20:42:46Z

IssaRice:

==Definition==

The '''celibacy rate''' of a population is defined as the fraction of the population aged 45-49 (both sexes combined) that is never-married, i.e.:

<math>\frac{\mbox{Number of never-married people ages 45--49}}{\mbox{Total number of people ages 45--49}}</math>

It may be reported as a simple fraction, as a percentage (denominator 100), or with a denominator of 1000.

User:IssaRice

2016-05-22T20:41:37Z

IssaRice:

Real name Issa Rice. Website and contact information: http://issarice.com

Unintended pregnancy

2016-05-22T20:28:34Z

IssaRice: /* Mistimed pregnancy */

==Definition==

The term '''unintended pregnancy''' is used for a pregnancy that is unplanned and unwanted at the time of [[conception]].

There are two aspects to this:

* The ''unplanned'' aspect indicates that the mother was not actively trying to conceive at the time.
* The ''unwanted'' aspect suggests that, with foreknowledge that the particular activity (typically, sexual intercourse) would lead to pregnancy, she would not engage in the activity.

===The distinction between unplanned and unwanted===

Note that the "unplanned" standard includes a wider range of pregnancies than the "unwanted" standard. For instance, a couple that wants to have children but is agnostic about the timing, and simply has unprotected sex regularly with "having children" as one of the probabilistically possible outcomes (but unlikely in any given instance of intercourse), might be said to have had an unplanned pregnancy, but the pregnancy is not unwanted.

===Mistimed pregnancy===

A ''mistimed'' pregnancy refers to a situation where the mother was indeed hoping to conceive but not at the specific time that she did. Mistimed pregnancies can be considered a special case of unwanted pregnancies, but it is sometimes useful to view them as their own category, because aborting a mistimed pregnancy is less likely to affect the female's [[completed fertility]] than aborting an unwanted pregnancy of any other type.

===The "at the time of conception" clause===

The term ''unintended pregnancy'' refers to the mother's attitude ''at the time of conception''. Attitudes may change between the time of conception and the time of birth, or even after the time of birth. In particular:

* Pregnancies that are unwanted at the time of conception may lead to children who are wanted at the time of birth: The mother may adjust to the idea of having the baby and fall in love with it during the pregnancy. Note also the [[market:endowment effect|endowment effect]].
* Pregnancies that are wanted at the time of conception may become unwanted during the course of the pregnancy. Reasons may include a relationship breakup between the parents, other changes to personal circumstances (such as job loss) that make raising a child difficult, and discovery that the child has some genetic or congenital diseases.

User:IssaRice

2016-05-22T19:57:37Z

IssaRice: Created page with "test: <math>a</math>"

test: <math>a</math>