Assorted links

1. Black widow males prefer well-fed mates.

2. In which areas has consumer spending gone up since the recession?

3. Pregnancy envy and the death tax (pdf, strange but interesting essay by Dalton Conley).

4. Does P = NP (or not) matter for market efficiency? (video talk and linked paper)

5. Kenneth Rogoff on what to do.

6. An epistemic defense of the blogosphere (gated).