ジョセフ・ナイ
"The Soft Power 30", which includes a foreword by Joseph Nye, is a ranking of countries' soft power produced and published by the media company "Portland" in 2015. The ranking is based on "the quality of a country’s political institutions, the extent of their cultural appeal, the strength of their diplomatic network, the global reputation of their higher education system, the attractiveness of their economic model, and a country’s digital engagement with the world."