Abstract
Although aging is a global phenomenon, there are large differences across countries in both the speed of aging and the current age composition. Furthermore, countries adopt vastly different policies. This creates a natural laboratory that scientists can use to understand how policies affect outcomes. I discuss under what circumstances data from different countries can be used for inference about policy effects. Although comparable health and retirement data are currently being collected in some 25 countries, the use of such data requires careful modeling of differences in institutions and in response styles across countries.
Keywords: Gross Domestic Product, Differential Item Functioning, Work Disability, Dependency Ratio, Response Consistency
Footnotes
This research was supported by Grant 5P01AG008291 from the National Institute on Aging.
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