COMING THIS WEEK FROM TYLER COWEN: The Great Stagnation: How America Ate All The Low-Hanging Fruit of Modern History, Got Sick, and Will (Eventually) Feel Better. “In a figurative sense, the American economy has enjoyed lots of low-hanging fruit since at least the seventeenth century: free land; immigrant labor; and powerful new technologies. Yet during the last forty years, that low-hanging fruit started disappearing and we started pretending it was still there. We have failed to recognize that we are at a technological plateau and the trees are barer than we would like to think. That’s it. That is what has gone wrong.The problem won’t be solved overnight, but there are reasons to be optimistic. We simply have to recognize the underlying causes of our past prosperity—low hanging fruit—and how we will come upon more of it.”