Abstract
The world economy today is vastly different from the 1930s, when Seymour Harris, the chairman of this meeting, infected me with his boundless enthusiasm for economics and his steadfast confidence in its capacity for good works. Economics is very different, too. Both the science and its subject have changed, and for the better, since World War II. But there are some notable constants. Unemployment and inflation still preoccupy and perplex economists, statesmen, journalists, housewives, and everyone else. The connection between them is the principal domestic economic burden of presidents and prime ministers, and the major area of controversy and ignorance in macroeconomics. I have chosen to review economic thought on this topic on this occasion, partly because of its inevitable timeliness, partly because of a personal interest reaching back to my first published work in 1941.