Humans 3.0 by Peter Nowak

Author:Peter Nowak
Language: eng
Format: epub
Publisher: Lyons Press
Published: 2014-01-06T05:00:00+00:00

This is traced here to the dramatic decline in the expected cost of premarital sex, due to technological improvement in contraceptives and their increased availability . . . First, individuals weigh the cost and benefit of coitus when engaging in premarital sexual activity. Second, they associate with individuals who share their own proclivities. Such a model mimics well the observed rise in premarital sexual activity, given the observed decline in the risk of sex . . . Improvement in contraceptive technology may also partially explain the decline in the fraction of life spent married for a female from 0.88 in 1950 to 0.60 in 1995. This is due to delays in first marriages and remarriages and a rise in divorce. Historically, the institution of marriage was a mechanism to have safe sex, among other things. As sex became safer, the need for marriage declined on this account.24

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