Friday assorted links

1. Charter cities, innovative governance conference, San Francisco, September 20.

2. Parrots can make economic decisions.  Article here, it turns out the African grey parrots had an independent demand to hold the tokens (as stores of value? consumption objects?).

3. Felix Salmon on the German Facebook refugee study.

4. An economic plan to induce Iranian freedom.

5. Sudbin plays Scarlatti.

6. Black holes and computational complexity.