The sixth and seventh volumes of Paul Samuelson's papers gather his final writings. "It is a measure of Professor Samuelson's preeminence that the sheer scale of his work should be so much taken for granted," a reviewer for the Economist once observed, marking both Paul Samuelson's influence and his astonishing prolificacy. These two volumes gather the Nobel Laureate's final writings. Samuelson declined suggestions that he write an...