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Multilingual Demographic Dictionary, second unified edition, English volume
Difference between revisions of "52"
(Etienne van de Walle et al., second 1982 edition *** existing text overwritten ***) |
(Eugen Grebenik et al., first edition 1958) |
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=== 520 === | === 520 === | ||
− | + | Marriage frequency is measured by {{TextTerm|marriage rates|1|520|IndexEntry=marriage rate|OtherIndexEntry=rate, marriage}} or {{TextTerm|nuptiality rates|1|520|2|IndexEntry=nuptiality rate|OtherIndexEntry=rate, nuptiality}}, among which the {{TextTerm|crude marriage rate|2|520|OtherIndexEntry=marriage rate, crude}} gives the ratio either of the total number of marriages to the total population in a given period, or of the number of newly-married persons ({{RefNumber|50|5|.4}}) to the total population. The second ratio is, of course, exactly twice the first. | |
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=== 521 === | === 521 === | ||
− | The | + | The terms {{TextTerm|male nuptiality|1|521|OtherIndexEntry=nuptiality, male}} and {{TextTerm|female nuptiality|2|521|OtherIndexEntry=nuptiality, female}} are used for the marriage frequency of the different sexes. {{TextTerm|Sex-specific marriage rates|3|521|IndexEntry=sex-specific marriage rate|OtherIndexEntry=marriage rate, sex-specific}} may be computed with the appropriate population at risk ({{RefNumber|13|4|.2}}) of each sex as a base. It is usual to distinguish between a {{TextTerm|first marriage rate|4|521|IndexEntry=marriage rate}} which relates the number of bachelors or spinsters ({{RefNumber|51|5|.3}} and 4) marrying to the total number of bachelors or spinsters respectively and a {{TextTerm|remarriage rate|5|521|OtherIndexEntry=rate, remarriage}} which relates the number of remarriages to the total number of widowed and divorced persons. {{TextTerm|Age-specific marriage rates|6|521|IndexEntry=age-specific marriage rate|OtherIndexEntry=marriage rate, age-specific}} or {{TextTerm|age-specific nuptiality rates|6|521|2|IndexEntry=age-specific nuptiality rate|OtherIndexEntry=nuptiality rate, age-specific}} are usually computed with the number of marriageable persons in the appropriate sex-age group as a base. The {{TextTerm|average age at marriage|7|521|IndexEntry=age, average}} is frequently computed as an indicator of nuptiality. |
=== 522 === | === 522 === | ||
− | {{ | + | Age-specific nuptiality rates ({{RefNumber|52|1|.6}}) are often combined in a {{TextTerm|nuptiality table|1|522|OtherIndexEntry=table, nuptiality}} which is similar to a life table ({{RefNumber|43|1|.1}}). The terminology relating to life tables is discussed in paras. {{RefNumber|42|1|-437}}. {{TextTerm|Gross nuptiality tables|1|522|2|IndexEntry=gross nuptiality table|OtherIndexEntry=nuptiality table, gross}} trace the history of a cohort ({{RefNumber|11|6|.2}}) of men or women who reach the minimum age of marriage and are subjected to a set of ago-specific nuptiality rates on the assumption that there is no mortality. It is possible to calculate functions analogous to life table functions, as for instance the {{TextTerm|probabilities of marriage|2|522|IndexEntry=probability of marriage|OtherIndexEntry=marriage probability}} between birthday {{NonRefTerm|x}} and birthday {{NonRefTerm|x}} + 1, and the {{TextTerm|numbers remaining single|3|522|IndexEntry=number of remaining single}} at various ages. A {{TextTerm|net nuptiality table|4|522|OtherIndexEntry=nuptiality table, net}} takes death rates as well as marriage rates into account. It is called a {{TextTerm|double decrement table|5|522|OtherIndexEntry=decrement table, double}} or {{TextTerm|double attrition table|5|522|2|OtherIndexEntry=table, double attrition}} because the population of single persons is subjected to attrition both by death and by marriage. The main functions of the net imptiality table are the {{TextTerm|single survivors|6|522|IndexEntry=single survivor|OtherIndexEntry=survivor, single}}, persons who remain alive and unmarried at birthday {{NonRefTerm|x}}; the {{TextTerm|ever-married survivors|7|522|IndexEntry=ever-married survivor|OtherIndexEntry=survivor, ever-married}}, persons alive at birthday {{NonRefTerm|x}} who have been married before that birthday; and the {{TextTerm|probability of single survival|8|522|OtherIndexEntry=single survival, probability of}} over a period, generally taken as a year. The {{TextTerm|expectation of unmarried life|9|522|OtherIndexEntry=unmarried life, expectation of}} at a given age may be computed according to the gross nuptiality table and the net nuptiality table. |
=== 523 === | === 523 === | ||
− | A {{TextTerm|divorce rate|1}} | + | A {{TextTerm|divorce rate|1|523|OtherIndexEntry=rate, divorce}} may be calculated in different ways. The {{TextTerm|crude divorce rate|2|523|OtherIndexEntry=divorce rate, crude}} gives the ratio of the number of divorces to the average population during a given period. The ratio of divorces to the number of married couples is sometimes computed and may be called the {{NonRefTerm|crude divorce rate of the married population}}. Ideally, however, the rate should be the ratio between the divorces taking place in a given period and the number of marriages at risk ({{RefNumber|13|4|.2}}) of divorce during that period. But there is no accepted terminology. If divorces are tabulated by age of the divorced person or by duration of marriage, {{TextTerm|age-specific divorce rates|4|523|IndexEntry=age-specific divorce rate|OtherIndexEntry=divorce rate, age-specific}} or {{TextTerm|duration-specific divorce rates|5|523|IndexEntry=duration-specific divorce rate|OtherIndexEntry=divorce rate, duration specific}} can be computed. Another index of divorce frequency is obtained by computing the {{TextTerm|number of divorces per new marriage|6|523|OtherIndexEntry=marriage, number of divorces per new}}. |
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=== 524 === | === 524 === | ||
− | + | Where the requisite basic statistics are available, {{TextTerm|marriage dissolution rates|1|524|IndexEntry=rate, marriage dissolution}} may be computed, showing for each sex the probability of the marriage being dissolved by death or divorce according to some combination of {{TextTerm|age at marriage|2|524|OtherIndexEntry=marriage, age at}}, {{TextTerm|age difference between spouses|3|524|OtherIndexEntry=spouses, age difference between}}, and {{TextTerm|duration of marriage|4|524|OtherIndexEntry=marriage duration}}. These rates may be combined into {{TextTerm|marriage dissolution tables|5|524|IndexEntry=table, marriage dissolution}} of different kinds. | |
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{{SummaryShort}} | {{SummaryShort}} | ||
{{OtherLanguages|52}} | {{OtherLanguages|52}} |
Revision as of 20:40, 7 November 2009
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520
Marriage frequency is measured by marriage rates 1 or nuptiality rates 1, among which the crude marriage rate 2 gives the ratio either of the total number of marriages to the total population in a given period, or of the number of newly-married persons (505-.4) to the total population. The second ratio is, of course, exactly twice the first.
521
The terms male nuptiality 1 and female nuptiality 2 are used for the marriage frequency of the different sexes. Sex-specific marriage rates 3 may be computed with the appropriate population at risk (134-.2) of each sex as a base. It is usual to distinguish between a first marriage rate 4 which relates the number of bachelors or spinsters (515-.3 and 4) marrying to the total number of bachelors or spinsters respectively and a remarriage rate 5 which relates the number of remarriages to the total number of widowed and divorced persons. Age-specific marriage rates 6 or age-specific nuptiality rates 6 are usually computed with the number of marriageable persons in the appropriate sex-age group as a base. The average age at marriage 7 is frequently computed as an indicator of nuptiality.
522
Age-specific nuptiality rates (521-.6) are often combined in a nuptiality table 1 which is similar to a life table (431-.1). The terminology relating to life tables is discussed in paras. 421--437. Gross nuptiality tables 1 trace the history of a cohort (116-.2) of men or women who reach the minimum age of marriage and are subjected to a set of ago-specific nuptiality rates on the assumption that there is no mortality. It is possible to calculate functions analogous to life table functions, as for instance the probabilities of marriage 2 between birthday x and birthday x + 1, and the numbers remaining single 3 at various ages. A net nuptiality table 4 takes death rates as well as marriage rates into account. It is called a double decrement table 5 or double attrition table 5 because the population of single persons is subjected to attrition both by death and by marriage. The main functions of the net imptiality table are the single survivors 6, persons who remain alive and unmarried at birthday x; the ever-married survivors 7, persons alive at birthday x who have been married before that birthday; and the probability of single survival 8 over a period, generally taken as a year. The expectation of unmarried life 9 at a given age may be computed according to the gross nuptiality table and the net nuptiality table.
523
A divorce rate 1 may be calculated in different ways. The crude divorce rate 2 gives the ratio of the number of divorces to the average population during a given period. The ratio of divorces to the number of married couples is sometimes computed and may be called the crude divorce rate of the married population. Ideally, however, the rate should be the ratio between the divorces taking place in a given period and the number of marriages at risk (134-.2) of divorce during that period. But there is no accepted terminology. If divorces are tabulated by age of the divorced person or by duration of marriage, age-specific divorce rates 4 or duration-specific divorce rates 5 can be computed. Another index of divorce frequency is obtained by computing the number of divorces per new marriage 6.
524
Where the requisite basic statistics are available, marriage dissolution rates 1 may be computed, showing for each sex the probability of the marriage being dissolved by death or divorce according to some combination of age at marriage 2, age difference between spouses 3, and duration of marriage 4. These rates may be combined into marriage dissolution tables 5 of different kinds.
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