Revolution was not on the agenda when the Second Vatican Council of the Catholic Church opened on Oct. 11, 1962, almost exactly 50 years ago. However, the gathering marked the start of a new era, not only for the world’s largest centrally-run religion. During the following years, the hope for a better, freer world led to everything from the sexual revolution to the Prague Spring, from African independence to the hippie culture of Woodstock. A half-century on, it seems a good time for an economist to take stock.