The demand for various commodities by individuals is generally thought of as the outcome of a utility-maximizing process.
个人对于各种商品的需求，被描述为一个追求效用最大化的过程。
The exchange of material culture is bilateral. Europe, in return, had exported various commodities and plants through the Silk Road, meeting the needs of Chinese market.
物质文化的交流是双向的，欧洲也通过丝绸之路出口各种商品和植物，满足中国市场的需求。
Related to residential consumption analysis, extend linear expenditure system (ELES) is widely used in statistics analysis, and calculating the demand elasticity of various commodities.
对于居民消费结构分析，现广泛采用扩展线性支出系统模型进行统计分析，并计算出各类商品的需求弹性。
Related to residential consumption analysis, extend linear expenditure system (ELES) is widely used in statistics analysis, and calculating the demand elasticity of various commodities.
对于居民消费结构分析，现广泛采用扩展线性支出系统模型进行统计分析，并计算出各类商品的需求弹性。
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