I'm not arguing that cell phone numbers are always an indication of where people are from. I'm arguing that since cell phones are portable (even before the numbers were), your cell number can identify where you're from, and if that matters to you you can make an effort to keep a number, or make a point of changing it.
Free long distance, having a 'home' area, and pre-number portability made it harder to retain a number, but it didn't make it impossible, so it creates noise in the data, but correlations are rarely perfect.
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Date: 2009-09-16 05:21 am (UTC)Free long distance, having a 'home' area, and pre-number portability made it harder to retain a number, but it didn't make it impossible, so it creates noise in the data, but correlations are rarely perfect.