their own or with filtering in reducing or eliminating spam. When filtering is used in conjunction with either price the …We analyze three potential solutions to the spamn problem - sender pays pricing, receiver pays pricing and filtering … - used alone or concurrently. We find that filters alone may exacerbate the spam problem if the spammer tries to evade them …

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 …