Marriage benefits men more than women

I agree with Megan McArdle's analysis of marriage in this article.

To add to what she has said, in the bigamy statistics for about 200 years there were 176 incidents of bigamy record by the old bailey. Only 6 of these cases were women and in one case where it was a woman, she had been sold by her first husband.(here).

Now, ok, these statistics may be somewhat out of date. The institution of marriage has thankfully gone through a number of significant changes since then.