Eaton, B. Curtis; MacDonald, Ian A.; Meriluoto, Laura - In: Canadian Journal of Economics 46 (2013) 3, pp. 881-899
We analyze the success of filtering as a solution to the spam problem when used alone or concurrently with sender … pricing, receiver pricing, or both. We find that filtering alone may exacerbate the spam problem in terms of both the total … number of spam message sent and the expected number of spam messages received, because it may cause the spammer to send …