Economists (eg. Wolfers, Stevenson, Lundberg, Becker, etc) have been looking into the effects of no-fault divorce laws on the rate of divorces for quite a while now (refer to [1] for example).
Their general findings are that "the data broadly indicate that divorce law reform led to an immediate spike in the divorce rate that dissipates over time. After a decade, no effect can be discerned." [1]
They tend to attribute the steady rise in divorces to the changing nature of the family over the last century, things like increased participation of women in the labour force, advances in household technology, the contraceptive pill and the growing acceptance of non-standard family structures (eg. single mothers, defacto families).
Their general findings are that "the data broadly indicate that divorce law reform led to an immediate spike in the divorce rate that dissipates over time. After a decade, no effect can be discerned." [1]
They tend to attribute the steady rise in divorces to the changing nature of the family over the last century, things like increased participation of women in the labour force, advances in household technology, the contraceptive pill and the growing acceptance of non-standard family structures (eg. single mothers, defacto families).
[1] Wolfers, J. "Did unilateral divorce laws raise divorce rates? A new reconciliation and new results", http://ideas.repec.org/p/nbr/nberwo/10014.html