Why Open Access Matters
Open-access (OA) publishing removes paywalls from research, allowing anyone — regardless of institutional affiliation — to read, download, and build upon scholarly work. For Hong Kong researchers, OA is increasingly relevant: many funding bodies now mandate open dissemination of publicly funded research, and global collaboration is easier when findings are freely accessible.
However, "open access" is not a single uniform system. Understanding the different models is essential to making informed publishing decisions and avoiding costly mistakes.
The Main Open-Access Models Explained
Gold Open Access
Under the Gold OA model, the final published article is made immediately and permanently free to read on the journal's website. The cost of publication is typically shifted from the reader to the author through an Article Processing Charge (APC), which can range from a few hundred to several thousand US dollars depending on the journal and publisher.
Reputable Gold OA journals include those published by PLOS, BioMed Central, and many society publishers. APCs at these outlets fund genuine editorial and production services. By contrast, predatory journals also charge APCs under the guise of Gold OA — making it critical to verify legitimacy before submitting.
Green Open Access (Self-Archiving)
Green OA allows authors to deposit a version of their manuscript — typically the accepted author manuscript (AAM) before final typesetting — into an institutional repository or subject-based repository, even if the journal itself remains subscription-based.
Many Hong Kong universities operate institutional repositories. Check your institution's repository platform and confirm the journal's self-archiving policy using Sherpa/RoMEO, which tracks publisher permissions for self-archiving.
Hybrid Open Access
Hybrid journals are traditional subscription journals that offer authors the option to pay an APC to make their individual article OA, while the rest of the journal remains behind a paywall. Critics argue this creates "double dipping" — publishers collect both subscription fees and APCs.
Some funders, such as those governed by Plan S, discourage or prohibit publication in hybrid journals unless a transformative agreement is in place with the publisher.
Diamond Open Access
Diamond OA journals are free to read and free to publish in — no APCs for authors, no subscription fees for readers. They are typically run by academic societies, universities, or non-profit organisations, often supported by institutional funding or volunteer editorial labour. Diamond OA is increasingly recognised as the most equitable model, particularly for researchers in the humanities and social sciences where grant funding for APCs is less common.
Comparing the Models
| Model | Free to Read? | APC Required? | Immediacy |
|---|---|---|---|
| Gold OA | Yes | Usually yes | Immediate on publication |
| Green OA | Via repository | No | Often after embargo period |
| Hybrid OA | Article-by-article | Yes (per article) | Immediate if APC paid |
| Diamond OA | Yes | No | Immediate on publication |
Funding APCs in Hong Kong
If you hold a grant from the Hong Kong Research Grants Council (RGC), check whether your grant budget allows for APC expenditure — many do. Institutional library funds for APCs are also increasingly available at Hong Kong universities; contact your library's scholarly communications team for details. If no funding is available, Green OA self-archiving is often the most practical route.
Choosing the Right OA Path
- Check funder mandates before selecting a journal.
- Verify journal legitimacy via DOAJ before paying any APC.
- Explore Green OA options through Sherpa/RoMEO for subscription journals.
- Ask your institution's library about APC funding or transformative agreements with publishers.
- For humanities and social science research, look for Diamond OA journals in your field.
Open access publishing, done correctly, amplifies the reach and impact of your research. The key is understanding your options and verifying that every outlet you consider meets legitimate scholarly standards.