Economic models often lead to the study of systems of equations.
经济模型经常导致对方程组的研究。
The protection price mechanism is analyzed in the light of economic models.
本文系统地阐述并探讨了我国粮食收购保护价政策的变化及定价机制。
However those studies mostly focus on simple reasoning and lack the economic models.
然而这些研究多为文字说明或简单的逻辑推理，缺乏经济学模型的指导。
Shanghai Cooperation Organization; Regional Economic Cooperation; Legal Models.
上海合作组织；区域经济合作；法律模式。
Shanghai Cooperation Organization; Regional Economic Cooperation; Legal Models.
上海合作组织；区域经济合作；法律模式。
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