So much water has flowed under the bridge since the first issue of Économie et Statistique. Fifty years ago, France was just emerging from the political and social big chaos of May 1968. The country was driven by a powerful growth spurt, known as the Trente Glorieuses (or the Thirty Glorious Years), according to the famous term coined by Jean Fourastié…

Citation: Cohen, D. (2019). Times have changed. Preface to the 50^th Anniversary Special Issue. Economie et Statistique / Economics and Statistics, 510-511-512, 13–15. https://doi.org/10.24187/ecostat.2019.510t.1986