Access challenges for China researchers have increased, including for online research. This paper focuses on one subset of such challenges: policy documents. As no studies have to date analysed variation in data availability over time, researchers studying official documents risk conflating variation in transparency with actual policy change. This paper analyses missingness and finds that publication of policy documents under China's “open government information” initiative increased until the mid-late 2010s but then began to decrease. A key determinant of policy transparency is whether a document is related to citizens’ daily lives, as opposed to national security. Furthermore, nearly 20 per cent of policy documents become unavailable two years after their publication. The paper concludes with a discussion on how to mitigate these challenges.

This article examines the institutionalization of online consultation, a prominent instrument of governance reform in contemporary China in which government organizations make public draft laws and regulations and solicit input from interested parties prior to finalizing decisions. The article specifically analyses the extent to which online consultation is a durable governance reform that enhances transparency and participation in policymaking. The analysis focuses on the Ministry of Commerce (MOC) and Guangzhou Municipal Government (GMG), leading organizations in the implementation of online consultation. Through the analysis of original datasets consisting of hundreds of policies proposed by the MOC and GMG and thousands of comments submitted in response to these drafts, the article demonstrates that online consultation has institutionalized government transparency but has not consistently enhanced public participation. Although online consultation has the potential to transform policymaking, the evidence suggests that strong confidence in this possibility is not warranted.