Answered By: Esther Ng
Last Updated: Nov 03, 2020     Views: 267


Gold Open Access

Green Open Access

Access to the final published paper

Articles are published in open access journals. Hence, the final published paper can be freely accessed without subscription.


Articles are first published in subscription based journals. Hence, payment is required to access the final published paper.

The versions which are free-of-charge to access are those that are deposited in open access repositories such as institutional repositories or subject repositories. They are usually pre-prints or post-prints of the article.

Article processing charges (APCs)

Most open access journals require APCs which may be charged to the author or to his/her institution for publishing the articles.

Most conventional subscription-based journal publishers do not require APCs.

Involvement of open access repositories

Since articles published in open access journals are made available to readers without charges, there is no need to deposit them in open access repositories.

Articles are published in conventional subscription-based journals. Hence, authors will have to deposit a version of the articles in open access repositories to make them available to the readers who do not have subscription to the journals.

Immediacy of accessing the “free” article

Articles published in open access journals are available immediately upon publication.

Depending on the self-archiving policies of the publishers, an embargo might be imposed on making a version of the article available in an institutional repository.

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