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Abstract
This article provides the history underlying the journal impact factor and weaknesses of this
measure to evaluate journal quality. The Eigenfactor and Article Influence Scores are suggested as
an improved way to compare research quality and impact across disciplines. The network analysis
underlying the Eigenfactor approach suggests the agricultural and natural resource economics
profession can have a larger impact on the scientific community by directing more research effort
towards interdisciplinary work. The Article Influence approach is used to develop a seven-tier
system to evaluate research quality, to be used either to guide individual faculty about where to
publish their research or to evaluate the research portfolio of a department.