Assorted links by Tyler Cowen February 27, 2011 at 4:41 pm in Web/Tech 1. Via Chris F. Masse, do psychosocial concerns limit technological progress? 2. The Green Revolution and the temporary exhaustion of low-hanging agricultural fruit. 3. Do earmarks matter? 4. Kindle as durable goods monopoly. 5. The world's weirdest skyscrapers?