Most discussion of national saving behavior is based on national income account data. This paper lays out some of the main alternative conceptions of saving and to present data comparing recent U.S. saving behavior with its own past and with that of other nations. I argue, in particular, that...

Using a new specification, we reanalyze the data on worldwide environmental quality investigated by Gene Grossman and Alan Krueger in a well-known paper on the environmental Kuznets curve (which postulates an inverse U shaped relationship between income level and pollution). The new...