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Sex Ratio, Number of Spouses, and Age at Marriage - Gtx0 ?>


Sex Ratio, Number of Spouses, and Age at Marriage
Posted: Posted June 29th, 2018
Edited April 22nd, 2019 by chiarizio
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Note: All ratios in this post are approximate.

As a general rule (if I’m right about what the general rules are), in Real Life Earth Human societies, the more numerous sex has fewer current spouses (if there is a difference) and marries later in life, while the less numerous sex has more current living spouses (if there is a difference) and marries earlier in life.

For most of the societies we’ve been able to find out about, the men have been less numerous, by the time they were old enough to marry.

As I inderstand it, today and probably for the past 25 to 50 millennia, everywhere in the world:
  • About 130 boy babies are conceived for every 100 girl babies conceived.
  • About 106 baby boys are born alive for every 100 baby girls born alive.

    In “less advanced” societies:
  • About 56 men grow to adulthood for every 100 women who achieve adulthood.

    ———
    So much for the real world. Now I’m going to talk about Adpihi, and if I have time Reptigan.
    ———

    AFMCW:
    I’m just going to assume the more numerous sex never outnumbers the less numerous sex by a ratio more than 7 to 2.

    If the more numerous sex outnumbers the less numerous sex by a ratio greater than 5 to 2 but less than 7 to 2, I expect most members of the less numerous sex will have currently in-force marriages to two living spouses (of the opposite sex), while a minority will have three currently “active” living spouses (of the opposite sex). Members of this minority sex will probably marry pretty much as soon as they come of age, and won’t spend much time married to only one spouse.

    OTOH nobody will have more than three current, active marriages to living spouses, because that’s not allowed in Adpihi.
    Normally anyone in/on Adpihi is permitted at most three marriages at a time and at most six total lifetime.
    They’re not expected to have more than two marriages, lifetime, that produce offspring; but it’s OK for both of these marriages to exist at the same time.

    Probably, when the sex ratio is this extreme, at any given moment only 2/7 to 2/5 of the majority sex will be someone’s first spouse; another 2/7 to 2/5 will be someone’s second spouse; 1/5 to 2/7 will be someone’s third spouse; and maybe up to 1/7 will be unmarried, and maybe will remain so until old age or for life. I think 6/7 or more of them will eventually marry. Probably few of them will ever have more than one currently “active” living spouses.

    I’m thinking a sex-ratio as high as 5 to 2 is likely to be either a short-term event (one generation or less), or limited to a restricted area (instead of global or planet-wide), or (more likely) both.

    OTOH suppose the majority sex outnumbers the minority sex by some ratio greater than 3 to 2 but less than 5 to 2. I think this could happen more often. It might last a few generations in, for instance, newly-settled areas, or in certain cities or metropolitan areas, or in belligerent countries during wars (but wars won’t last a whole generation!), etc.
    This used to be common in “less advanced” societies, where/when it was just more dangerous to be male than to be female, at least until adulthood, in spite of the fact that giving birth is about 2.5 times as dangerous as going into battle. Such societies had about 1.8 women for every man; probably four out of five men had two wives, one out of five men had one wife, few men had no wife, and few men had three or more wives all alive at the same time.

    In this case, the minority sex will still have their first marriage solemnised right about when they come of age. Most of them will also contract a second marriage before the vigor goes out of their first marriage. Whether “most” is more like 51%% or more like 99%% depends on the exact sex ratio, I expect. Most of them will not have an active third marriage while their first two marriages are still in force and “lively”.

    For the majority sex, between 2/5 and 2/3 of them will be someone’s first spouse, and between 1/3 and 2/5 will be someone’s second spouse. Up to 1/5 of them will be someone’s third spouse. I expect most of them will marry at least once; and most of them will never be married to both of two spouses both living at the same time.

    Finally, suppose the majority sex outnumbers the minority sex by 3 to 2 or less. This is the usual situation on/in Adpihi, as it is in real life.
    130 to 100 is less than 150 to 100, which is 3 to 2.
    106 to 100 is almost even.
    (100 to 56 is about 179 to 100; bigger than 3 to 2 but less than 4 to 2, which is 2 to 1.)

    In such a case, I expect the average member of the minority sex will marry as soon as they come of age, but most of them won’t marry a second spouse while their first marriage is “still lively”, whatever that means. Few if any will ever have three marriages “active” at the same time; likewise few if any will long remain unmarried.
    More than 2/3 of the majority sex will be someone’s first spouse; most of remainder will be someone’s second spouse. Most of them will never have two “active” marriages at the same time. Most of them will marry at least once.

    —————

    To avoid problems I’m going to post this now, but when I return, I will post about ages at marriage in Adpihi.

    —————

  • There are 4 Replies

    Note: All ages in this post are approximate.


    The “social engineers” or “social designers” who first set up Adpihi wanted the age-gap between a child’s parents to be half a generation.
    By that rule, a “maiden” (or whatever the masculine word is for never-been-married-before) person’s first spouse, should be some age at least as old as halfway between the maiden’s age and their younger parent’s age, but no older than halfway between the maiden’s age and their older parent’s age.
    And a parent marrying for the second time, should seek a maiden at least as old as halfway between the parent’s age and their youngest child’s age, but no older than halfway between the parent’s age and their oldest child’s age.

    But that’s not what people do.
    First; it’s embarrassing to have a parent-in-law younger than you, or to have a child-in-law older than you, or a step-parent younger than you, or a step-child older than you, or a spouse older than your younger parent, or a spouse younger than your oldest child.
    Second; people would rather be closer in age to their spouse than to their parents or children.
    Third; men are reluctant to marry someone more than nine years their senior; and everyone is reluctant to enter a marriage with an age-gap greater than fifteen years, in either direction.

    So people like to get as close as they can to the “designers’ ideal” without crossing any of the above boundaries, although only the first one is almost never crossed.

    —————

    What can anyone else say about their own concultures?

    Posted June 29th, 2018 by chiarizio
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    This is a good example for Adpihi’s and/or Reptigan’s entry into the contrast between;

    What people think they should do;
    What people think people actually do; and,
    What people actually actually do.

    Posted December 23rd, 2018 by chiarizio
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    Bump

    Posted March 22nd by chiarizio
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    I don’t want any algorithm to decide nobody is ever going to respond to this again.

    Posted October 3rd by chiarizio
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