positive analysis and normative analysis 实证分析与规范分析
Methods employed include logical analysis and normative analysis.
研究方法：逻辑分析和规范分析。
It is a permanent principle that we combine positive analysis and normative analysis in economic analysis.
实证分析与规范分析相结合是经济学分析的一贯原则。
Economic analysis of the specific method is a cost-benefit analysis and normative analysis and empirical analysis.
经济分析的具体方法是成本效益分析法和规范分析与实证分析相结合的方法。
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