Assorted links by Tyler Cowen December 19, 2012 at 12:08 pm in 1. The psychology of on-line reviews. 2. Has the rate of mass shootings actually increased? And why is violence declining, yet overall gun violence on the rise? 3. 21 Brilliant British people problems. 4. Shrayana Bhattacharya and Lant Pritchett offer some skepticism about Indian cash transfers. 5. What is the North Korean internet like?