Creating the "Sex Market"

An economist tries to go all Stephen Levitt on contraception by using data to show that ready access to contraceptives hurts womankind.

There are a few interesting ideas in the piece, but he largely undermines them by engaging in logical errors, conflation of ideas, and unfounded assertion. See if you can find them all! I’ll spot you the first one:

It may be biologically inevitable that relatively more men will populate the sex market and relatively more women will populate the marriage market. The reason for this is simple. The vast majority of women want to have children sometime during their lives.

Really? Says who? Conventional wisdom may suffice for ordinary conversation, but aspiring to prove your point with economics requires you to provide the reader with data.