Actually, assuming this is using only dollar bills, this is likely following the movement of poor humans. Credit and debit and large bills are typically in the hands of the middle to upper class.
To me this is an excellent map of how "trapped" people are in the situations they are in. The motility of the poor is something that has been restricted for thousands of years, and something we're supposed to be improving.
I understand this likely resembles a map of how far people will travel from major economic centres, but having grown up in an area of extremely high unemployment in the UK and having moved to an area of extremely low unemployment, making the poor willing to move has recognizable economic benefits. I know in Canada, where I now live, EI (unemployment) will pay moving expenses for someone to move to a lower unemployment area.
To me this is an excellent map of how "trapped" people are in the situations they are in. The motility of the poor is something that has been restricted for thousands of years, and something we're supposed to be improving.
I understand this likely resembles a map of how far people will travel from major economic centres, but having grown up in an area of extremely high unemployment in the UK and having moved to an area of extremely low unemployment, making the poor willing to move has recognizable economic benefits. I know in Canada, where I now live, EI (unemployment) will pay moving expenses for someone to move to a lower unemployment area.