You know the old saying about having a hammer and everything looking like nails? I was reading an article in the Journal of Law and Economics about why housing prices in Manhattan are so high, and I thought, "Omigosh! The answer to the demographic implosion." Since my hammer happens to be sex and marriage, even an economics article reminds me of sex. So bear with me. I’ll explain what the article had to say about housing prices. Then I’ll tell you what it has to do with sex...