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CASRAI

Editorial · CASRAI

Green vs. Gold Open Access: A Comparative Guide for Research Libraries

Introduction to Open Access in Scholarly Spaces Achieving universal open access requires navigating diverse publishing models. For research libraries managing collection budgets and funder compliance, understanding the structural differences between Green and Gold Open Access is vital. Gold Open Access: Publishing in Free-to-Read Journals Gold Open Access makes the final published version (Version of Record) […]

ByCASRAI Editorial Board
Published 15 Jun 2026· Last updated 25 Jun 2026· 2 minute read

Introduction to Open Access in Scholarly Spaces

Achieving universal open access requires navigating diverse publishing models. For research libraries managing collection budgets and funder compliance, understanding the structural differences between Green and Gold Open Access is vital.

Gold Open Access: Publishing in Free-to-Read Journals

Gold Open Access makes the final published version (Version of Record) freely available on the publisher’s website immediately upon publication. This model is often funded by Article Processing Charges (APCs) paid by authors or institutions, which can strain library collection budgets and create global publishing inequalities.

Green Open Access: Self-Archiving and Repositories

Green Open Access relies on self-archiving. Authors publish in traditional subscription journals, but deposit a peer-reviewed version (usually the Author Accepted Manuscript) in their institutional repository. Green OA is free for authors and libraries, but is often subject to publisher embargo periods and complex copyright checks.

Constructing a Balanced Library Open Access Strategy

Libraries should employ a hybrid strategy: 1. Negotiate ‘Transformative Agreements’ (Read and Publish contracts) with publishers to cover Gold OA APCs. 2. Provide robust technical and administrative support for Green OA repository self-archiving to capture articles not covered by licensing agreements.

Key Data and Comparative Metrics

Comparison Metric Gold Open Access Green Open Access
Manuscript Version Version of Record (VoR) with full journal layout. Author Accepted Manuscript (AAM) or preprint.
Publication Fee (APC) High (Paid by author/grant/institution). None (100% free to self-archive).
Publishing Timeline Immediate open access upon online publication. Often delayed by publisher embargoes (6-24 months).
Copyright Retention Author usually retains copyright via CC licenses. Author typically transfers copyright to the publisher.

Actionable Checklist for Open Access

  • Evaluate ‘Transformative Agreements’ based on total institutional publishing output.: Evaluate ‘Transformative Agreements’ based on total institutional publishing output.
  • Invest in user-friendly repository software to streamline faculty self-archiving.: Invest in user-friendly repository software to streamline faculty self-archiving.
  • Provide legal guidance to researchers on retaining rights (e.g., rights retention strategy).: Provide legal guidance to researchers on retaining rights (e.g., rights retention strategy).
  • Promote open data publishing alongside Gold and Green publication efforts.: Promote open data publishing alongside Gold and Green publication efforts.
  • Track compliance rates with national open access mandates across university departments.: Track compliance rates with national open access mandates across university departments.
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