不同于现有文献采用某种单一的方法研究地区间趋同问题，本书在研究我国省际农村居民消费趋同时，构建了一个综合的趋同研究方法体系，其中包括侧重于描述性统计的随机核方法、侧重于统计检验的有限混合分布模型和侧重于解释的分位数回归模型，因此这个框架同时具有描述性统计分析、统计检验和结果解释的功能。此外，还在这个体系中明确考虑了空间效应，从而避免了空间效应对研究结果的影响，确保了研究结果的可靠性。

研究结果表明：（1）我国省际农村居民的各项消费支出总体上呈现双峰俱乐部趋同；（2）人均消费总支出、人均分类消费支出和人均纯收入都存在显著的空间自相关；（3）人均纯收入是决定消费趋同的首要因素，收入和空间因素综合在一起几乎解释了所有的消费趋同信息。

Different from the existing literature that uses a single method to study the problem of interregional convergence, this book constructs a comprehensive convergence research methodological system while studying the consumption trend of rural residents in China, including random kernel method focusing on descriptive statistics, limited mixed distribution model focusing on statistical testing, and quantile regression model focusing on interpretation, so this framework has the functions of descriptive statistical analysis, statistical testing and result interpretation. In addition, spatial effects are explicitly considered in this system, so as to avoid the influence of spatial effects on the research results and ensure the reliability of the research results. The results show that: (1) the consumption expenditures of rural residents in China are generally convergent in the Twin Peaks Club; (2) There was significant spatial autocorrelation in per capita total consumption expenditure, per capita categorical consumption expenditure and per capita net income; (3) Per capita net income is the primary factor determining consumption convergence, and income and spatial factors combined explain almost all consumption convergence information.（AI翻译）

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