Assorted links by Tyler Cowen November 20, 2013 at 12:07 pm 1. New data on the thinning of middle class jobs. And the increase in female-headed families. 2. Data on the decline in world inequality. 3. What are the NASA spin-off technologies? 4. Jeffrey Sachs on secular stagnation. 5. Equilibrium, for Jeremy Lin. 6. Krugman on the current Obamacare troubles.