Publications

Schmitz, H. P., & Clarke Umstead, M. (2026). What Diversity Dimensions Count? Reporting Practices of the Largest U.S.-Based International NGOs. Nonprofit Policy Forum (open access).

Bukalova, D., & Schmitz, H. P. (2026). Leader self-development in local government: framing the antecedents of self-awareness. International Journal of Public Leadership. 

Campbell, D. A., McDougle, L., & Schmitz, H. P. (2026, March 10). Gifts from top 50 US philanthropists jumped to $22.4B in 2025 − Mike Bloomberg, Bill Gates and the estate of Paul Allen lead a list of the biggest givers. The Conversation (U.S.). 

Schmitz, H. P., & Mitchell, G. E. 2025. A Framework for Understanding and Evaluating Localization: The Case of HelpAge International. Public Administration and Development (open access).

Schmitz, H. P. 2025. The Giving Pledge, International Encyclopedia of Civil Society, ed. by R.A. List, H. K. Anheier, & S. Toepler, Springer (download here). 

Mitchell, G. E., Schmitz, H.P., and Chen, B. 2025. NGO Mergers and Acquisitions: A Relational Perspective, Beyond Cooperation and Competition: A Relational Approach to NGOs, ed. by M. Z. Deloffre and S. Quack, 85-106, Oxford UP (open access). 

Bloodgood, E. A., Schmitz, H.P. 2024. The INGO research agenda: Changes in approach and outcomes over the last decade,  Routledge Handbook of International Organization, ed. B. Reinalda and M. Louis, 83-95, Routledge. 

Mitchell, G. E., Nerothin, P., Pontes, M., Schmitz, H.P., and Walsh, C. 2024. Is Governance Aligned with Rhetoric? Exploring the Board Composition of Leading Transnational NGOs, Journal of Public and Nonprofit Affairs 10 (2).

Schmitz, H.P. 2024. Philanthropy and Heroism, Encyclopedia of Heroism Studies, ed. by S. T. Allison, J. K. Beggan, and G. R. Goethals, 1554-59, Springer.

Schmitz, H.P. 2023. Collaborative Advocacy: Fostering Transformative Outcomes (chapter 10), Hope is not a Strategy: Leadership and Positioning in Health and Human Services, ed. by Lyn Corbett, 157-66, Kendall Hunt.

Schmitz, H. P. 2023. Book review: Vigilantes beyond Borders: NGOs as Enforcers of International Law, by Mette Eilstrup-Sangiovanni and J. C. Sharman (Princeton, N.J.: Princeton University Press, 2022), Ethics & International Affairs, 37 (2), 244-246. 

Schmitz, H. P., Mitchell, G. E. 2022. Understanding the Limits of Transnational NGO Power: Forms, Norms, and the Architecture. International Studies Review, 24 (3).

Berger, T., Holzscheiter, A., Jetschke, A., Schmitz, H. P., & Esguerra, A. 2022. New Perspectives on Transnational Non-State Actors—A Forum Honoring the Work of Thomas Risse. International Studies Review, 24 (3).

Schmitz, H. P. 2022. What’s the Giving Pledge? A philanthropy scholar explains. The Chronicle of Philanthropy/The Conversation (US), May 6 and May 20.

Mitchell, G. E. & H. P. Schmitz. 2021. Using Model-Based Clustering to Improve Qualitative Inquiry: Computer-Aided Qualitative Data Analysis, Latent Class Analysis, and Interpretive Transparency.  Voluntas. International Journal of Voluntary and Nonprofit Organizations.

Schmitz, H. P., Mitchell, G. E., & McCollim, E. M. 2021. MacKenzie Scott, The Giving Pledge, And Rival Discourses Of Billionaire Philanthropy, HistPhil (July 20).

The Relevance of TNGOs. The Common Good Hour (podcast, June 13, 2021)

Schmitz, H. P. & McCollim, E. M. 2021. Billionaires in global philanthropy: A decade of the Giving Pledge. Society 58: 120–130.

Pontes, M. & H. P. Schmitz. 2021 (November 22). Coronado Floral Association: Bringing Together California's Coronado Community (teaching case). Harvard Business Publishing Education.

Schmitz, H. P., Mitchell, G. E., & McCollim, E. M. 2021. How billionaires explain their philanthropy: A mixed-method analysis of the Giving Pledge letters. Voluntas. International Journal of Voluntary and Nonprofit Organizations 32: 512–523.

Mitchell, G. E. & Schmitz, H. P. 2021. To Remain Relevant, CSOs Need to Fix the Architecture. International Civil Society Centre, Berlin (February 19).