Samstag, 16. November 2019

Divorce:

A Treatise on the Family
Gary S. Becker (1981)

"If participants in marriage markets have complete information about all prospects, divorce would be a fully anticipated response to a demand for variety in mates or to life-cycle changes in traits. Most divorces would then occur after many years of marriage, because traits change gradually. The facts, however, suggest the opposite: about 40 percent of all divorces (and annulments) occur prior to the fifth year of marriage, and separation usually precedes divorce by a year or more (U.S. Department of Health, Education, and Welfare, 1979).

If, however, participants had highly imperfect information, most divorces would occur early in marriage by virtue of the fact that information about traits increases rapidly after marriage. Several years of marriage is usually a far more effective source of information on love and many other traits than all the proxies available prior to marriage. I suggest that marriages fail early primarily because of imperfect information in marriage markets and the accumulation of better information during marriage."

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"The more rapid accumulation of information during the first few years of marriage implies that divorce is more likely early in marriage than later. Divorce rates are highest during the first few years of marriage and decline steeply after four or five years, although the explanation is partly that those most prone to divorce tend to drop out early from the cohort of married persons (see Heckman, 1981, on the effects of heterogeneity).

Divorce is less likely later in the marriage for the additional reason that capital accumulates and becomes more valuable if a marriage stays intact ("marital-specific" capital). Children are the prime example, especially young children, although learning about the idiosyncrasies of one's spouse is also important (Heimer and Stinchcombe, 1979). Divorce is much less likely when there are children, especially young children-not only in the United States and other rich countries (Goode, 1963, pp. 85, 364; BLM, 1977), but also in primitive societies (Saunders and Thomson, 1979).

The accumulation of marital-specific capital is, in turn, discouraged by the prospect of divorce because, by definition, such capital is less valuable after a divorce. Presumably, trial or consensual marriages produce fewer children than legal marriages at least partly because the former are less durable (see the evidence in Kogut, 1972, on consensual and legal marriages in Brazil). Persons who marry outside their race or religion are far more likely to divorce than are others with similar measurable characteristics. Therefore, we can readily understand why marriages between persons of different races or religions have significantly fewer children even when intact marriages are compared (see the evidence for the United States in BLM, 1977), and why marriages between Indians of different castes have fewer children than marriages within a caste (Das, 1978).

Expectations about divorce are partly self-fulfilling because a higher expected probability of divorce reduces investments in specific capital and thereby raises the actual probability. For example, consensual and trial marriages are less stable than legal marriages, and marriages between persons of different religions or races are less stable than those within a religion or race, partly because mixed marriages have fewer children. At the same time, as indicated, mixed marriages have fewer children partly because they are expected to be less stable."

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