Micro social behaviors cause the change of social norm, and induce the change of macro social structure through a period of accumulation.

微观社会行为推动社会规则的变化，并经过一段时间的积累导致宏观社会的变迁。

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This paper discussed a class of social economic system models structure change point by dynamic programming method, which are illustrated by examples.

本文用动态规划方法讨论了一类社会经济系统模型结构变化点的问题，并通过实例进行了验证。

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From then on, the ancient Chinese social class structure began to change from hierarchy standard to wealth standard.

由此，中国古代社会的阶层结构出现转型，由身份等级制向以财富为标准的贫富转化。

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Health care reform in China reflects a sea change in demographics and social structure.

FORBES: Beijing's Healthcare Reform: $173 billion and counting

By transforming the social structure through economic alliances, corporations and their partners in government and the nonprofit sector may be able to promote social change through aggressive corporate philanthropy and citizenship.

FORBES: For the 21st Century, a Network of Beneficial Philanthropy and Corporate Citizenship