微笑曲线强调向价值链的两端渗透以增加价值。培训服务向两端的发展,特别是将受训人员“内部化”,是对受训企业、受训人员和培训机构三方都有利的举措,更是培训机构延伸价值链、强化价值链的重要选择。 The smile curve emphasizes penetration into both ends of the value chain to add value. The development of training services at both ends, especially the “internalization” of trainees, is an advantageous measure for all three parties including trainees, trainees and training institutes. It is also an important choice for training institutions to extend the value chain and strengthen the value chain.