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Theorizing Public Diplomacy Moving from Monologue to Dialogue to Collaboration: The Three Layers of Public Diplomacy - Geoffrey Cowan and Amelia Arsenault Public Diplomacy: Taxonomies and Histories - Nicholas J. Cull Searching for a Theory of Public Diplomacy - Eytan Gilboa The New Public Sphere: Global Civil Society, Communication Networks, and Global Governance - Manuel Castells Public Diplomacy and Soft Power - Joseph S. Nye, Jr. Hard Power, Soft Power, Smart Power - Ernest J Wilson III The Tools of Public Diplomacy Place Branding: The State of the Art - Peter van Ham New Technologies and International Broadcasting: Reflections on Adaptations and Transformations - Monroe E. Price, Susan Haas and Drew Margolin Mapping the Undefinable: Some Thoughts on Relevance of Exchange Programs within International Relations Theory - Giles Scott-Smith National Case Studies of Public Diplomacy and Commentary International Exchanges and the U.S. Image - Nancy Snow Buena Vista Solidarity and the Axis of Aid: Cuban and Venezuelan Public Diplomacy - Michael J. Bustamante and Julia E.
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Cowan et al. (2008) studied this question.
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