Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/31167
Authors: 
Reshef, Eran
Solan, Eilon
Year of Publication: 
2005
Series/Report no.: 
Discussion paper // Center for Mathematical Studies in Economics and Management Science 1411
Abstract: 
We study how the launching of a do-not-spam registry will affect the internet's efficiency. We show that as long as the cost of sending spam messages is not high, having rich users (who have high-quality filters) join the registry has the desirable effect of lowering the number of spam messages sent to each user, while having poor users (who have low-quality filters) join the registry has the opposite undesirable effect. We also show that the registry improves the total efficiency of the internet - as long as the cost of sending spam messages is not high; as more users join, the total number of spam messages sent to all users decreases.
Document Type: 
Working Paper

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