Sunday assorted links

1. “In 2018, there were 20,933 calls to San Francisco’s government complaining about human feces.”

2. Does urbanization contribute to depression?

3. China polygenic scores comparison of the day.

4. Informal norms for surfing property rights, a’la Schelling.

5. A Chinese liberal reviews Thomas Piketty.

6. Can you undo your vaccine?

7. Abhijit Banerjee, chef.  And his new cookbook is here.