(Replying to PARENT post)
Cash is managed through the regional branches of the Federal Reserve, and while there are some boundaries on that map that don't line up, it mostly seems to be governed by these particular administrative regions.
As a New Yorker from Connecticut, the gigantic barrier between New York and New England would have to be nearly completely explained by the Fed.
(Replying to PARENT post)
(Replying to PARENT post)
It's not quite there, but this reminds me of the Sprawl:
>In William Gibson's fiction, the Sprawl is a colloquial name for the Boston-Atlanta Metropolitan Axis (BAMA), an urban sprawl environment on a massive scale, and a fictional extension of the real Northeast Megalopolis.... The Sprawl is a visualization of a future where virtually the entire East Coast of the United States, from Boston to Atlanta, has melded into a single mass of urban sprawl.[1] It has been enclosed in several geodesic domes and merged into one megacity.
(Replying to PARENT post)
(Replying to PARENT post)
(Replying to PARENT post)
Having lived in North Jersey, Vermont, and Mississippi I can attest to cohesion of "New England", the LA/MS link, the blur of North NJ/NY and their sharp divide with South NJ/Philly.
The visualizations were interesting to look at if nothing else. I wish they had done something with the borders (maybe blurred colors) to make it a bit easier to grok the data.
(Replying to PARENT post)
If he wanted to do some interesting research, he would have asked to man who tracked dollar bills to ignore bills that were spent locally and instead track bills that traveled a considerable distance outside of their Federal Reserve District, because long distance cash transactions have become increasingly rare in the age of credit cards. Furthermore, that are the most likely to use cash are usually the poor, who are the least likely (except for the very rich, who don't carry cash on them at all) to use a computer and spend their time tracking where their cash has been.
[1] http://www.tjc.com/38states/
[2] http://www.rev.net/~aloe/boundary/bibliography.html#16-state
[3] http://www.rev.net/~aloe/region/question.html
[4] http://www.rev.net/~aloe/boundary/
EDIT: Added information about alternative state suggestions.