Tuesday assorted links by Tyler Cowen June 30, 2015 at 12:36 pm 1. Has 3-D printing stagnated? 2. Claims about Russia. A speculative but important piece by Max Fisher. And Russian village prints its own currency. 3. Ben Wattenberg, RIP. 4. Rare earths were never such a big problem to begin with. 5. Anil Kashyap primer on Greece. 6. G.C. Harcourt reviews Piketty from the Left (pdf).