Intelligent information-sharing systems
Communications of the ACM
Semistructured messages are surprisingly useful for computer-supported coordination
ACM Transactions on Information Systems (TOIS)
Communications of the ACM
Bifrost inbox organizer: giving users control over the inbox
Proceedings of the second Nordic conference on Human-computer interaction
Markets for attention: will postage for email help?
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Models of attention in computing and communication: from principles to applications
Communications of the ACM
Predicting human interruptibility with sensors: a Wizard of Oz feasibility study
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Pricing via Processing or Combatting Junk Mail
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Experimental economics and experimental computer science: a survey
Proceedings of the 2007 workshop on Experimental computer science
On the properties of spam-advertised URL addresses
Journal of Network and Computer Applications
Can markets help?: applying market mechanisms to improve synchronous communication
Proceedings of the 2008 ACM conference on Computer supported cooperative work
Introduction to this special issue on revisiting and reinventing e-mail
Human-Computer Interaction
mimir: a market-based real-time question and answer service
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Don't ask me: designing social Q&A services
Crossroads - The Social Web
Why pay?: exploring how financial incentives are used for question & answer
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Should I open this email?: inbox-level cues, curiosity and attention to email
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The security cost of cheap user interaction
Proceedings of the 2011 workshop on New security paradigms workshop
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Junk e-mail or spam is rapidly choking off e-mail as a reliable and efficient means of communication over the Internet. Although the demand for human attention increases rapidly with the volume of information and communication, the supply of attention hardly changes. Markets are a social institution for efficiently allocating supply and demand of scarce resources. Charging a price for sending messages may help discipline senders from demanding more attention than they are willing to pay for. Price may also credibly inform recipients about the value of a message to the sender before they read it. This article examines economic approaches to the problem of spam and the results of two laboratory experiments to explore the consequences of a pricing system for electronic mail. Charging postage for e-mail causes senders to be more selective and to send fewer messages. However, recipients did not interpret the postage paid by senders as a signal of the importance of the messages. These results suggest that markets for attention have the potential for addressing the problem of spam but their design needs further development and testing.