Accession Number : AD0769147

Title :   Limited Role of Entropy in Information Economics,

Corporate Author : CALIFORNIA UNIV LOS ANGELES WESTERN MANAGEMENT SCIENCE INST

Personal Author(s) : Marschak,Jacob

Report Date : OCT 1973

Pagination or Media Count : 15

Abstract : Of the properties of the entropy function meant to express the intuitive characteristics of the concept information, some are shared by a class of symmetric strictly semi-concave functions, others by all concave functions, of the probability vector. Moreover, one information system is more valuable than another, for all system users, if and only if the information transmitted is greater for the former system, computed on the basis of any concave function of the probability vector, and not on the basis of entropy alone. The economically important exclusive property of entropy is its measuring the disorder defined as the minimum expected length of a decodable description of a state. This is relevant to the loss due to delays in communication, or to its fixed cost (paid for channel capacity). (Author)

Descriptors :   (*Information theory, *Entropy), Stochastic processes, Data transmission systems, Information systems, Matrices(Mathematics), Coding

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE