求翻译：本文以现有文献为基础，进行了理论和实证两个层面的研究。在进行这两方面研究之前，介绍了我国及世界卷烟行业的历史和现状，这部分内容属于本文研究背景的介绍。在理论层面的分析中，我们全面探讨了卷烟消费的性质。在实证层面的分析中，我们建立了时间序列计量经济学模型，利用湖北省的相关数据，考察卷烟消费的影响因素。实证分析分为两个部分，第一个部分研究了全部卷烟消费量的影响因素，第二个部分研究高价卷烟消费的影响因素。回归结果显示，价格和时间对卷烟消费量有显著影响，而价格、收入、教育水平、性别和时间对高价卷烟的需求都有显著影响。是什么意思？

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This article is based on the existing literature, to conduct theoretical and empirical research at two levels. Before the study carried out in the two aspects, and introduced the cigarette industry in China and the world, and this part of the history and current status of this article describes rese

This article take the existing literature as a foundation, has carried on the theory and the real diagnosis two stratification plane research.Before carries on these two aspects study, introduced our country and the world cigarette profession history and the present situation, this part of content b

This article is based on the available literature, theoretical and empirical research on two levels. Before in both studies, introduced in China and the history and current situation of world cigarette industry, describes the background of this part belongs to this paper. At the theoretical level of

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