Summary form only given. The main theme of the article is to discuss how to associate a value with information in the context of control. It concludes with a discussion of some differences between control and communication. Two issues are time delays and computational requirements.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Karl Johan Åström (2002) studied this question.