The form and quality of social welfare functions are firstly compared and analyzed; the form of social welfare function was brought forward to evaluate the welfare effect of public projects.

The first type of research maximize social welfare as the objective function in order to pay compensation to the patent owner and compute the optimal patent length and the optimal width, then explore the patent competition and patent imitation problem.

第一种类型的研究一般是以社会福利最大化作为目标函数，以对专利所有者的补偿报酬作为约束条件得到最优专利长度以及最优宽度，并进而研究专利竞赛以及专利模仿。

The social welfare is the positive function of the quantity of parallel imports in the short term. With the increasing of the quantity of parallel imports, the social welfare will increase quickly.

从供求角度的分析可以看出，在较短的时期内，社会福利是平行进口量的增函数，且随着平行进口量的增长，社会福利的增长也越快。

According to Welfare Economics, social welfare is the function of individual welfare, an equal allocation of resources can increase social welfare due to the law of diminishing returns of marginal utility.

福利经济学认为，社会福利是个人福利的函数。由于边际效用递减，因此更公平的资源配置会提高整个社会的福利。

Moreover hostile takeover is helpful for economic development and improvement of social welfare with the function of optimizing the utility of recourses.

它还能起到社会资源优化配置的作用，从而能促进经济发展，提高社会福利。

Integrated assessment models is based on cost-benefit analysis, which can maximize the social welfare function and find the best reduction path through incorporating abatement cost function and damage function of climate change.

综合评估模型以成本-效益分析为基础，通过气候变化减排成本函数和损害函数的纳入，最大化社会福利函数，寻求最佳的减排路径。

The earlier economists tended to do the analysis in the framework of representative person, by adding the total individual utility functions to get the social welfare function.

之前的主流经济学家倾向于在代表性个人分析框架中，通过加总个人的效用函数得到社会总福利函数，然后对不同的收入分配结构进行评价。

With the rise of Arrow's impossibility theorem research in social welfare function in the West enters a stage of perplexity.

由于阿罗不可能性定理的提出，西方社会福利函数理论的研究进入了困惑时期；

We found that under a different range of accommodation, the Gini coefficient and social welfare function are regularly changes.

发现，在不同的调整幅度下，基尼系数与社会福利函数皆呈现规律性变化。

Multi-valued Social Welfare Function

多元的社会福利函数

Axiom for social welfare function

社会福利功能的公理

Thinking of constructing government size& analysis basing on social welfare function

构建适度政府规模的设想&基于社会福利函数的分析

By analyzing the wealth distribution and wealth entropy, we investigate the social wealth distribution is unbalanced.

通过对富分分布以及财富熵的分析可知，该网络中财富分布极不均衡。

Modernization brings plenty of migrant workers who create huge amounts of social wealth to towns.

现代化为城镇带来了大量外来务工人员，他们创造了许多社会财富。

"Land is the mother of wealth" shows great importance of the land to increasing in social wealth.

土地是财富之母，可见土地对于社会财富增加而言是何等重要。

Without a job, there is no source of income and it will be difficult to increase social wealth.

没有就业就没有收入，也难以增加社会财富。

Allocation of social wealth is unfair;

社会财富分配的不均；

Meanwhile, the social wealth is centralizing relatively, Income distribution gap is expanding.

与此同时，社会财富分配相对集中，收入分配差距持续扩大且趋势不减的现象日趋严重。

Therefore, this paper also has practical meaning as it pays attention to the allocation way of social wealth.

众所周知，财富分配状况会影响未来的经济增长，因此，本文将财富分配状况纳入分析范围也具有较强的现实意义。

Economic globalization has promoted free trade and facilitated economic development and increase of social wealth in the world.

经济全球化推动了贸易自由化，促进了世界范围内的经济发展和社会财富的增加。

The study of our current economic theory should be concentrated on how to develop production and increase total social wealth.

当前我国经济理论研究的主流课题应是改进和发展生产、增加社会财富总量；