Progressive degree of progressive tax rate depends on the type of Social welfarefunction and labour supply elasticity.
累进税率的累进程度取决于社会福利函数的类型和劳动供给弹性的大小。
2
With the rise of Arrow's impossibility theorem research in social welfarefunction 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;
3
The land can be capitalized only when the urbanization has been sped up and the system of social insurance for the rural population has been established to replace the welfarefunction of the land.