Assorted links

1. The tallest cow in the world?

2. Scott Sumner on exports.

3. New learning on the speed and breadth of the Industrial Revolution (pdf).

4. China upgrade markets in everything.  And interview with Marc Andreessen.  Should China make its big cities bigger yet?

5. Do travel restrictions limit pandemics?

6. Contrary to a behavioral econ claim about threshold earnings, taxi drivers in fact have positive elasticity of supply.

7. Elisa New (wife of Larry Summers) has a poetry MOOC from Harvard, Larry will appear to discuss economics and poetry with her.