NEW HAVEN, Connecticut, July 9 -- Yale Law School posted the following news:

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The Unforeseen Consequences of the 'Great Aging' of America

In a new book, Yale law professor Samuel Moyn argues that a "gerontocracy" holds sway in America, hoarding jobs and political power.

By Lisa Prevost

The average life span for Americans hovered around 40 years for the first 100 years of the nation's existence.