The Times discusses lower divorce rates among cohorts married in the 1990s and 2000s, according to the SIPP. It's a nice update to work last decade by Stevenson and Wolfers.
Update: Another nice piece by Wolfers discusses changes in the economic role of marriage and connections to the rising acceptance of gay marriage.
Update 2: A tweet by Wolfers led me to this recent study on marriage and specialization exploiting a 1988 change in Swedish pension laws.
Update 3: Josh Goldstein pointed me in the direction of this 2014 piece in Demography by Kennedy and Ruggles calling into question some of the patterns in SIPP data, reviewed here last spring.