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竞争均衡解决方案的存在与规范经济学或福利经济学之间的关系也许同样重要。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
Leadership in the coal industry today means navigating the delicate balance between economic necessity and environmental responsibility.
公司最大的资产是员工;投资他们,他们就会投资公司。
Sustainability is not an option; it's a responsibility we all share.