Proceedings of the International scientific and practical conference ―Modern Science and Education‖ (January 5-7, 2026) / Publisher website: www.naukainfo.com. – Liverpool, United Kingdom, 2026. – 174 p.

74 UDC 338.24:339.9 Vadym V. Kirov PhD Student Department of Regional Policy, Educational and Scientific Institute of Public Administration and Civil Service, Taras Shevchenko National University of Kyiv Kyiv, Ukraine COORDINATION MECHANISMS FOR THE ACTIVITIES OF SPECIAL REPRESENTATIVES FOR RECONSTRUCTION: RISKS OF DESTRUCTIVE COMPLEMENTARITY Abstract. The article explores the public administration architecture of Ukraine's post-war recovery through the lens of the activities of special representatives from partner countries. The phenomenon of destructive complementarity is analyzed as a consequence of institutional duplication and the absence of a unified interaction protocol. Based on an analysis of US and German approaches, contradictions in mandates are identified, and mechanisms for their harmonization are proposed. The role of digitalization and national ownership as key factors in minimizing transaction costs of international aid is substantiated. Keywords: post-war recovery, special representatives, institutional complementarity, coordination mechanisms, public administration, transaction costs, national ownership. The scale of the tasks involved in rebuilding the socio-economic potential of Ukraine after the end of active hostilities requires the construction of a flexible, yet strictly hierarchical system of public administration. One of the most dynamic elements of this system has become the institute of Special Envoys (Special Representatives) for recovery. As of 2024–2025, key donor countries (USA,