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Re:Why Germans pay cash for almost everything by bluGill on Tuesday August 08, 2017 @01:47PM (#14960429)
Nobody to my knowledge has every measures the costs of cash, it is just something they accept. With credit cards it is easy to measure because you get a number, but with cash it is not, you have to calculate too many different parameters and figure out what applies where.
Re:Why Germans pay cash for almost everything by germanier on Tuesday August 08, 2017 @02:55PM (#14961245)
I'm pretty sure every single German supermarket chain measures that, it's just a requirement to operate at those margins. The Edeka cooperative published in 2012 that their all-in cash handling cost is 0.14%. The 2013 Steinbeis Cost of Cash study[0] estimated a much higher number of 2.7% for merchants. The truth is probably somewhere in between.

Such studies have also been used to arrive at the EU interchange cap.

[0]: http://www.steinbeis-research.de/images/pdf-documents/CFP_Co...