As a recent paper explained, when you look at these percentages, you get one of the causes of Boko Haram’s seemingly endless supply of able bodied men willing to join its ranks https://twitter.com/stearsbusiness/status/1330825936074379265

To put it in a simpler way - if the richest 10% of men in a polygamous society marry 4 wives each, by definition, around 30% of men won’t be able to find someone to marry.

And it’s probably worse in Nigeria given how a lot of rich men use an aggressive interpretation* of a ‘maximum of 4 wives’

*They’ve added ‘at a time’ so they can keep divorcing one to make room for a new one