(Talk about a fast decline!) However, when I tracked down the actual study -- "Re-Examining the Case for Marriage: Variation and Change in Well-Being and Relationships" by Kelly Musick and Larry Bumpass -- the research wasn't looking for when the honeymoon phase ends.
Here we further investigate marriage variation by adding time-depth via phylogenetic analyses in order to better formulate evolutionary sequences of derived human traits surrounding marriage (e.g., mate exchange, meta-group social structure, etc).
However, this point also tells against the argument for the family resemblance view of marriage, as the variation of marital forms in practice does not preclude the existence of a normatively ideal form.
Peter Gaskin (Gp Capt RAF Ret'd) Brize Norton, Oxfordshire Marriage is for a man and a woman I am astonished to read Dr Michael Johnson (letter, 9 March) accusing church leaders of arrogance for reminding us that the institution of marriage, in many variations in form in all cultures and at all times in history, has always been between man and woman.
In France, the country where cohabitation is an accepted form of alternative union to marriage, there is little variation in paid work hours across union type among women.
Researchers reply that their samples are large enough to average out individual answers, and that measuring the benefit that, say, marriage brings deals with variations in temperament.Even so, different surveys can produce wildly different results.
Whatever the variations, however, marriage emerges as a key human universal.
Interestingly variations in the late marriage rate between cities is falling but variations in the number of single females between cities and size differences between cities are roughly constant.
Having flunked their first interviews with United States Citizenship and Immigration Services, they had entered the mysterious world of the "Stokes unit," a uniquely New York variation on the marriage interviews conducted nationwide whenever a citizen seeks a green card for a foreign spouse.
In this paper I use data sets 20+ years apart to examine ethnic variation in seasonality of marriage in Africa and the effect of social change on the same.
The formula of the Cox proportional hazards model is as follows: log {h}_i(t)=a(t)+beta {x}_i+upgamma {x}_i(t) where h j (t) refers to the divorce hazard of couple i after t years of marriage, and α(t) characterizes the variation of divorce risk in the duration of marriage, that is, the baseline hazard function of divorce.
