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Capital L sub t comma a comma i equals the time period during which the target period (t) was occurring intersected with the period in which person i was at least a sub 1 years old, but not yet a sub 2 years old, and also intersected with the period since person i entered the United States, if person i is an immigrant.

Back to Appendix B, Ninth Graphic Equation

This page was last updated on May 20, 2008.