Vols. for 1960-June 1970 issued by the Kansai Economic Federation with the collaboration of the Wharton School of Finance and Commerce, University of Pennsylvania, and the Institute of Social and Economic Research, Osaka University; Oct. 1970-Feb. 1983 by the Wharton School of Finance and Commerce, and the Osaka University Institute of Social and Economic Research Association; June 1983- by the Economics Dept. of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association