The authors compute the scaled varlogram (the variances of kth differences scaled by the variance of first differences) of the log of annual per capita real aggregate output (GDP or GNP), as measured by (1) the long series for the United States and United Kingdom; (2) Angus Maddison's (1982)...

Feldstein (1996, 1974) reported that Social Security in the U.S.A. reduced personal saving (“saving”) in 1992 (1971) by $416 ($61) billion. I reestimate his life-cycle consumption specification using data from the latest NIPA revision, correct his calculations, and find that the implied...