企业家精神及社会变化：中日韩案例研究：case studies from China, Japan, and South Korea case studies from China, Japan, and South Korea 东亚社会合作：以中日韩三国的发展为例：a case study of China, Japan and South Korea 老年长期护理保险制度：中日韩的比较研究：comparative study between China, Japan and south korea a case study of China, Japan and South Korea