Monday assorted links by Tyler Cowen July 20, 2020 at 11:50 am 1. Sally Rooney on the culture of college debate. 2. Why did Chinese rulers stay in power for so long? And China’s floods are getting worse. 3. Russian elite given experimental Covid vaccine since April? 4. “There is little relationship between the opioid crisis and contemporaneous measures of labor market opportunity.” 5. “We show that occupational licensing has significant negative effects on labor market fluidity defined as cross-occupation mobility.”