Assorted links by Tyler Cowen December 21, 2012 at 12:15 pm in 1. Update on the legal issues with driverless cars. 2. Is manioc becoming a gourmet item? 3. Private health care: lessons from Sweden. 4. Good profile of Adam Posen. 5. Arbitrage, biofuels, Canada, infinite loop, etc. 6. Donkey cheese is not yet monopolized, not even by Djokovic.