Media type: E-Article Title: Market efficiency, filter rules and buffer stock profitability Contributor: Hallwood, Paul imprint: Elsevier BV, 1985 Published in: Resources Policy Language: English DOI: 10.1016/0301-4207(85)90056-x ISSN: 0301-4207 Keywords: Law ; Management, Monitoring, Policy and Law ; Economics and Econometrics ; Sociology and Political Science Origination: Footnote: