RINがCIBERに委託した研究の（必要以上にスタイリッシュな）報告書が公開されていました。いつもの深層ログ分析，図書館統計（EJ予算規模），機関レベルの論文生産性・被引用数などの変数を組み合わせて分析をしているようです。
E-journals: their use, value and impact
概要：
http://www.rin.ac.uk/files/E-journals_use_value_impact_April2009.pdf
EVALUATING THE USAGE AND IMPACT OF E-JOURNALS IN THE UK: AIMS, SCOPE, METHODS AND RESEARCH CONTEXT
http://www.rin.ac.uk/files/Aims_scope_methods_context_CIBER_ejournals_working_paper.pdf
EVALUATING THE USAGE AND IMPACT OF E-JOURNALS IN THE UK: INFORMATION USAGE AND SEEKING BEHAVIOUR SUBJECT AND INSTITUTIONAL PROFILES
http://www.rin.ac.uk/files/Information_usage_behaviour_CIBER_ejournals_working_paper.pdf
EVALUATING THE USAGE AND IMPACT OF E-JOURNALS IN THE UK: BIBLIOMETRIC INDICATORS FOR CASE STUDY INSTITUTIONS
http://www.rin.ac.uk/files/Bibliometric_indicators_CIBER_ejournals_working_paper.pdf
EVALUATING THE USAGE AND IMPACT OF E-JOURNALS IN THE UK: JOURNAL SPENDING, USE AND RESEARCH OUTCOMES: A UK INSTITUTIONAL ANALYSIS
http://www.rin.ac.uk/files/Journal_spending_use_outcomes_CIBER_ejournals_working_paper.pdf
