方言距离、同乡网络与跨市流动  

Dialect Distance, Social Network and Cross-City Migrant

作　　者：王群勇[1,2] 张乃丹 Wang Qunyong;Zhang Naidan(School of Economics,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学数量经济研究所 [2]南开大学经济行为与政策模拟实验室,300071 [3]南开大学经济学院,300071

出　　处：《南开经济研究》2022年第3期98-120,共23页Nankai Economic Studies

基　　金：教育部哲学社会科学实验室专项资金项目“个体行为与宏观涌现特征的模拟与估计”的资助。

摘　　要：本文利用2017年全国流动人口动态监测调查(CMDS)数据,采用社会网络分析方法研究中国城市间人口流动的空间结构特征。其结果显示,中国人口流入较为集中,人口流出则相对多极化,流动网络表现出明显的地域分布和群体性特点。基于非正式制度的研究框架,本文考察了方言距离和同乡网络对微观流动决策的共同影响。其结论为,方言距离对人口流动起抑制作用,而同乡网络能促进人口跨方言区的流动;二者存在显著的交互作用,即随着方言距离增加,同乡网络对人口流动决策的效应更为强烈,表现为随着同乡网络规模扩大,方言距离对人口流动的抑制作用降低。在考虑了个体异质性和普通话普及率差异化后,结论依然稳健。This paper uses the dynamic monitoring data of the national floating population(2017)to study the spatial structure characteristics of China’s inter-city flows of population by using the analysis method of social network.The study finds that the distribution of population inflow is more concentrated,while the distribution of population outflow is relatively multi-polar.Secondly,the population flow network has obvious group characteristics and geographical distribution.Furthermore,based on the framework of informal system,this paper explores the influence of dialect distance and migrants’network on cross-city migrant decision-making.Specifically,we find that networks have a positive effect on the migrant location decisions while the effect of dialect distance is negative.What’s more,we also find strong positive interaction between the two factors,which indicates that the larger the dialect distance,the effects of networks is more enhanced and stronger.In several extensions of heterogeneity and difference in Putonghua popularization,we show that this substitutable relationship is robust,and there exist some obvious differences among people and regions.

关 键 词：流动决策 方言距离 同乡网络 社会网络分析 个体异质性 

分 类 号：C924.2[社会学—人口学] C912.3