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AbstractThis paper assesses the potential benefits of composite forecasting methods as applied to commodity prices. Conditions under which composite forecasts are most applicable are examined. A Monte Carlo simulation and empirical examples are used to assess the benefits of composite forecasts and provide guidelines on the selection of appropriate methods. The importance of independent pieces of information and why composites cannot be a cure for poor forecasts under many realistic situations are discussed.

This study examined the effects of time restriction on social interaction in computer-mediated communication through a meta-analysis of applicable research. Time was defined as whether subjects were restricted or unrestricted in their opportunity to exchange messages. Studies were included that assessed either of two outcome variables: socially oriented (as opposed to task-oriented) communication, and negative / uninhibited communication. Hypotheses were derived from Walther's social information processing perspective. Meta-analytic tests supported the hypotheses on social communication. Although no effects were found on negative / uninhibited communication, a reexamination of original studies suggests caution regarding previous findings.

Exploring Media Discourse, Myra Macdonald (2003) London: Arnold, 224 pp., ISBN 0340719885 (hbk), 40.00; ISBN 0340719893 (pbk), 14.99


Big media, big money: Cultural texts and political economics, Bettig, R. & Hall, J. (2003) Lanham, MD: Rowman &
Littlefield, 192 pp., ISBN 0742511294 (hbk), $65.00; ISBN 0742511308 (pbk), $24.95


Staging the Real: Factual TV Programming in the Age of Big Brother, Richard Kilborn (2003) Manchester: Manchester University Press, 209 pp., ISBN 0719056810 (hbk), $74.95
(45.00); ISBN 071905682 (pbk), $24.95 (11.99)


Politics and Propaganda: Weapons of mass seduction, Nicholas Jackson O'Shaughnessy (2004) Manchester: Manchester University Press, 264 pp., ISBN 0719068525 (hbk), 55.00; ISBN 0719068533 (pbk), 14.99