does exactly this and has been enormously valuable for research on the economics of aging. The availability of comparable longitudinal surveys in many developed and developing nations has greatly enhanced the value of the HRS.
4d. Improve the development and use of macro data. While data at the individual and household level are extremely valuable, it also is useful to have macro-level data on many aspects of economic behavior, disaggregated at least by age and preferably by other variables as well. Data of this sort often can be constructed from existing administrative and survey sources such that no new data collection efforts are needed.