Contemporary archaeologists of the Bronze Age prefer scientific analysis of potsherds and bones to grand theories.

ECONOMIST: Ancient Greece

The type of insurance policy plays a big role in the analysis, as does the age difference between the husband and wife, and whether or not they wish to leave a bequest, Mr. Collins found.

WSJ: Turn Life Insurance Into an Investment

So, again assuming that this analysis is correct, we seem to have come to the end of the age of cheap oil.

FORBES: Peak Oil is Here: Now What?

And the Urban Future report's analysis found that even well-heeled Manhattanites with children tend to leave once they reach the age of 5 or above.

FORBES: New Geographer