The Airlangga Centre for Health Policy Research Group is a multidisciplinary research group with various collaborators from diverse scientific backgrounds. ACEHAP conducts quantitative, qualitative and mixed-design research on the political process of health policy, economic, social and psychological determinants of health policy. ACEHAP is strongly committed to embracing open research culture. Therefore, most of our research will be pre-registered. Our study materials, including raw data, design, analysis, & pre-prints will be made available to the public. We will also publish our research in OA journals, if-else, pre-prints will be publicly available.