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Please use this identifier to cite or link to this item: http://hdl.handle.net/10525/369

Title: The Value of Knowing that You Do Not Know
Authors: Greenstein, Gil
Ahituv, Niv
Keywords: Information Economics
Information Structures
Blackwell Theorem
Knowledge Management
Data Retrieval
System Accessibility
Data Availability
Issue Date: 2009
Publisher: Institute of Mathematics and Informatics Bulgarian Academy of Sciences
Citation: Serdica Journal of Computing, Vol. 3, No 2, (2009), 205p-226p
Abstract: The value of knowing about data availability and system accessibility is analyzed through theoretical models of Information Economics. When a user places an inquiry for information, it is important for the user to learn whether the system is not accessible or the data is not available, rather than not have any response. In reality, various outcomes can be provided by the system: nothing will be displayed to the user (e.g., a traffic light that does not operate, a browser that keeps browsing, a telephone that does not answer); a random noise will be displayed (e.g., a traffic light that displays random signals, a browser that provides disorderly results, an automatic voice message that does not clarify the situation); a special signal indicating that the system is not operating (e.g., a blinking amber indicating that the traffic light is down, a browser responding that the site is unavailable, a voice message regretting to tell that the service is not available). This article develops a model to assess the value of the information for the user in such situations by employing the information structure model prevailing in Information Economics. Examples related to data accessibility in centralized and in distributed systems are provided for illustration.
URI: http://hdl.handle.net/10525/369
ISSN: 1312-6555
Appears in Collections:Volume 3 Number 2

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