See also here or on Google Scholar or ResearchGate.
Books
Ehrhardt, D., Alao, D.O., & Umar, M.S. eds (2024) Traditional Authority and Security in Contemporary Nigeria, Routledge (open access).
Behrens, P., Bosker, T. and Ehrhardt, D. eds (2020) Food and Sustainability, Oxford University Press (link)
Mustapha, A. R. and Ehrhardt, D., eds (2018) Creed and Grievance: interfaith relations in northern Nigeria, James Currey (link)
Korteweg, R., and Ehrhardt, D. (2005) Terrorist Black Holes: A study into terrorist sanctuaries and governmental weakness, Clingendael Centre for Strategic Studies (link)
Refereed articles and book chapters
Ehrhardt, D., Alao, D.O., & Umar, M.S. (2024) Creative genius in postcolonial Nigeria: Re-imagining traditional rulership at a safe distance from politics in Ehrhardt, D., Alao, D.O., & Umar, M.S. (eds) Traditional Authority and Security in Contemporary Nigeria. Routledge (open access).
Ehrhardt, D., Alao, D.O., & Umar, M.S. (2024) Traditional authority, security governance, and Nigerian agency in Ehrhardt, D., Alao, D.O., & Umar, M.S. (eds) Traditional Authority and Security in Contemporary Nigeria. Routledge (open access).
Jong, S. de, Berenschot, W., Ehrhardt, D. & Walton, O. (2023) Agents of order? Brokerage and empowerment in development and conflict. Journal of International Development (open access)
Ehrhardt, D. (2023) The paradox of co-producing governance with traditional institutions: Diaspora chiefs and minority empowerment in Nigeria. Journal of International Development (open access)
Archambault, C. & Ehrhardt, D (2022). The committeefication of collective action in Africa. World Development (open access)
Ehrhardt, D., & Archambault, C. (2020). “The Gods Must Be Crazy”: Students’ Attitudes and Dispositions as Enablers and Blockers to Internationalization. Journal of Studies in International Education (open access)
Ehrhardt, D. and Umar, M. S. (2020) Pathways to radicalization: Learning from Boko Haram life histories in Mustapha, A.R. and Meagher K. (eds), Overcoming Boko Haram: Faith, Society, and Islamic Radicalisation in Northern Nigeria. Oxford: James Currey, pp. 169-192 (link)
Umar, M.S. and Ehrhardt, D. (2020) The endgames of Boko Haram in comparative perspective in Mustapha, A.R. and Meagher K. (eds), Overcoming Boko Haram: Faith, Society, and Islamic Radicalisation in Northern Nigeria. Oxford: James Currey, pp. 277-303 (link)
Mustapha, A.R., Meagher, M., Ehrhardt, D., Hassan, I., Gambo, K., Idrissa, R., Last, M., Monguno, A., Sanda, J., Taraboulsi, S., Umar, M.S., Umara, I., and Usman., Z. (2020) Toward a whole-of-society approach to counter-radicalisation in Mustapha, A.R. and Meagher K. (eds), Overcoming Boko Haram: Faith, Society, and Islamic Radicalisation in Northern Nigeria. Oxford: James Currey, pp. 304-324 (link)
Ehrhardt, D., Archambault, C., and Bosker, T. (2020) Collective action problems: How do collective action problems hinder the transition to sustainable food systems?, in Food and Sustainability, Oxford University Press (link)
Breeman, G. and Ehrhardt, D. (2020) Governance: How can food systems be governed to promote sustainability?, in Food and Sustainability, Oxford University Press (link)
Archambault, C. and Ehrhardt, D. (2020) Food aid: How can food aid effectively reduce food insecurity?, in Food and Sustainability, Oxford University Press (link)
Walsh, B, Vicherat-Mattar, D. and Ehrhardt, D. (2020) Consumption: How can we promote sustainable food consumption?, in Food and Sustainability, Oxford University Press (link)
Bosker, T., Behrens, P. and Ehrhardt, D. (2020) Can we feed the world sustainably? in Food and Sustainability, Oxford University Press (link)
Behrens, P., Bosker, T., and Ehrhardt, D. (2020) Conclusion: A view forward, in Food and Sustainability, Oxford University Press (link)
Ehrhardt, D. (2019) Radicalization in northern Nigeria: Stories from Boko Haram, in Mirjam de Bruijn (ed), Biographies of Radicalization: Hidden Messages of Social Change. Berlin, Boston: De Gruyter, pp. 114-133 (link)
Mang, H. and Ehrhardt, D. (2019) The politics of paper: Negotiating over and around indigeneship certification in Plateau State, Nigeria, Canadian Journal of African Studies, 52(3), pp. 331-347 (open access)
Ehrhardt, D. and Ibrahim, J. (2018) The significant minority: Christians and Christianity in northern Nigeria, in Creed and Grievance: interfaith relations in northern Nigeria (link)
Mustapha, A. R., R. Diprose, and D. Ehrhardt (2018) Historical contexts of Muslim-Christian encounters in northern Nigeria, in Creed and Grievance: interfaith relations in northern Nigeria (link)
Mustapha, A. R. and D. Ehrhardt (2018) Diversity, religious pluralism, and democracy in Creed and Grievance: interfaith relations in northern Nigeria (link)
Shah, A.V., Ehrhardt, D. & Owen, O. (2018) Obituary: Professor Abdul Raufu Mustapha, 1954–2017, Oxford Development Studies, 46:1, 1-2 (open access)
Ehrhardt, D. (2018). Radicalisation dans le nord du Nigeria: Histoires de Boko Haram in De Bruijn, M. Biographies de la Radicalisation, Langaa Publishers (link; pre-published version)
Ehrhardt, D. (2017) The citizen and the native: Indigeneship, belonging, and bureaucratic discretion in Kano, African Affairs, October (open access)
Ehrhardt, D. (2016) Janus' voice: Religious leaders, framing, and riots in Kano, Contemporary Islam 10:3, 333-356 (open access).
Ehrhardt, D. (2016) Who shall enter paradise? Christian origins in Muslim Northern Nigeria, c. 1890–1975, written by Shobana Shankar, Social Sciences and Missions, 29: 1-2, 195-197 (link)
Ehrhardt, D. (2011) The politics of West Africa, OBO, November (link)
Policy & professional
Ehrhardt, D. (2012) Religious leadership and governance in Kano, Nigeria Research Network Working Paper no. 2 (open access)
Comparative perspectives on the evolution of the JAS insurgency and its future scenarios (with NRN), Office of the National Security Advisor (ONSA) Policy Brief
Religious and ideological dimensions of radicalisation (with NRN), Office of the National Security Advisor (ONSA) Policy Brief
Indigeneity, belonging and religious freedom (with NRN), Nigeria Research Network Policy Brief no. 5
Informal institutions and peace in northern Nigeria, Nigeria Research Network Policy Brief no. 1
Interfaith relations in northern Nigeria (with NRN), Nigeria Research Network Policy Paper no. 2
Islamic actors and interfaith relations in northern Nigeria (with NRN), Nigeria Research Network Policy Paper no. 2
Media & online
My media profile at Science on Air can be found here
‘David Ehrhardt on better teaching’, JiveTalk podcast interview
'Vetes tussen herders en boeren veroorzaken geweld in Nigeria' (newspaper interview Trouw)
'Nigeria mist president' (radio interview NPO 1)
'Geest van verdwenen land Biafra nog altijd springlevend' (radio interview NPO 1)
'Olieland Nigeria zit zonder benzine' (radio interview NPO 1)
'Bloedbad in Nigeria' (radio interview NPO 1)
'Wie zijn de strijders van Boko Haram?' (radio interview BNR)
'Reportage: Nigeria naar de stembus' (radio interview NPO 1)
'Nigeria: Boko Haram in de campagne' (radio interview NPO 1, with Inge Ligtvoet)
Koloniaal verleden verdeelt Nigeria (Kennislink interview)
Nigeria at war (blog post)
'Boko Haram roept kalifaat uit in noord-Nigeria' (radio interview NPO 1, with Femke van Zeijl)
A matter of words (opinion article)
Fragmented power and Nigerian politics (blog post)
Nederlandse Brain Train behoeft nieuw spoorboekje (opinion article, with Ton van den Bremer)
Goed voor de carriere en goed voor de achterstandsschool (news article, with Farid Boussaid)
Als je een onderwijsplan jat, jat 't dan goed (news article)
Theses
Struggling to belong: nativism, identities, and urban social relations in Kano and Amsterdam (D.Phil, Oxford Department of International Development 2012)
Authoritative voices: informal authorities and conflict resolution in Kano, Nigeria (M.Phil, Oxford Department of International Development 2007)
Cultural conflict: culture and ethnicity in the civil wars in Rwanda and Bosnia-Herzegovina (BA Honour's Thesis, University College Utrecht 2004)