Interactions of Publication Volume, Journal Impact, and Article Processing Charges: Comparative Study of China and Global Practices in Nature Portfolio

In the commercial realm, the annual publication volume (PUB) significantly influences the business models of article processing charge (APC)-based open access (OA) journals, though it may negatively impact journal reputation. Despite this, the interactions among APC, PUB, and the Journal Citation Indicator (JCI)—a key marker of journal reputation—have not been thoroughly examined. The objective of this study is to reveal the interactions among APC, PUB, and JCI, determine if there are differences between the interactions inside and outside of China, and uncover the possible mechanisms enabling dominant publishers to set APC prices without compromising their market position. Through cross-correlation and linear regression analyses, our findings reveal distinct APC business models between China and the rest of the international OA journal landscape. Specifically, while both cases demonstrate a proportional relationship between APC and JCI, China exhibits an inverse relationship between APC and PUB, contrasting with the global trend. This suggests that the business model in China sets an “optimized” PUB for Chinese APC-based OA journals, which would pose challenges for journal management and the expansion of the domestic APC-based OA market volume. In the rest of the international context, by contrast, the business model supports a proactive annual increase in APC list prices driven by the proportional relationships between APC and PUB. These insights underscore the need for more nuanced APC business models that can adapt to regional variations in funder requirements and policy expectations.