Do cities cause divorce?

The divorce rate is higher in cities (like Melbourne) than it is in the country. But is that because there’s something about cities that promotes marital discord? These Danish researchers say no – it’s because couples in relatively stable relationships are more likely to move to the country:

“We give evidence that of the marriages that are formed in the city, those couples who
remain in the city have a higher divorce rate than the ones who move out. Likewise, the
couples who marry in the countryside but move to the city are more likely to divorce
than the ones who stay in the countryside. The main question we want to address in
this paper is whether this correlation refl‡ects a causal link. …… (read further –
Sin City: Why is the divorce rate higher in urban areas?)