Kerman University of Medical Sciences International Journal of Health Policy and Management 2322-5939 15 1 2026 12 01 Building Better Public Health Policy Knowledge: The Case for Pluralism 1 4 4851 10.34172/ijhpm.9659 EN Patrick Harris International Centre for Future Health Systems, University of New South Wales, Sydney, NSW, Australia Centre for Health Equity Training, Research and Evaluation, Population Health and Epidemiology Unit, South Western Sydney Local Health District, Liverpool, NSW, Australia 0000-0002-4649-4013 Journal Article 2025 12 06 Positivism Pragmatism Critical Social Science Critical Realism Climate Change Populism https://www.ijhpm.com/article_4851_5d40954183d62a82257835477ccad3d2.pdf