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    Review on the urban network externalities
    CHENG Yuhong, SU Xiaomin
    PROGRESS IN GEOGRAPHY    2021, 40 (4): 713-720.   DOI: 10.18306/dlkxjz.2021.04.015
    Abstract666)   HTML20)    PDF (722KB)(218)      

    Urban network research has become the frontier academic field of international urban research and has gradually become a hot spot. At present, the related literature on "urban network" mostly focuses on conceptual discussion, dimension analysis, and network structure analysis. Research on the influence of network on regional economic development is relatively weak. Externality, as an essential attribute of urban network, is of great significance to the evolution of urban network and the development of cities and regions. This article starts from a comparison of agglomeration externalities with urban network externalities, focusing on the review and evaluation of the formation mechanism, utility, and measurement methods of urban network externalities. The synergy effect, integration effect, and borrowing size are considered important reasons for the formation of urban network externalities. The research on the effectiveness of urban network externalities focuses on two aspects. The first is the role of factor flow in promoting knowledge diffusion and innovation, and the second is the impact of urban network on competitiveness and economic growth. Based on the existing literature, the research on the measurement of urban network externalities mainly involves identification and estimation, including three common methods: correlation analysis, regression analysis, and spatial econometric analysis. The existing empirical research on externalities is still mostly based on static analysis and lacks dynamic consideration. To a large extent, the existing research has insufficient theoretical framing and insufficient explanatory power, often resulting in the discovery of conditional associations, but not causal relationships. The Western research on urban network externalities is relatively early and mainly focuses on the global and regional dimensions, while Chinese scholars focus on the national and regional dimensions. In terms of empirical methods and objects, Chinese scholars have also made some innovations based on the study of world city network. The issues that need further attention in the future include theoretical understanding of urban network externalities, externality measurement methods, and empirical research.

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    Progress of infrastructure research from the perspective of feminist geography
    FENG Yaxin, AN Ning
    PROGRESS IN GEOGRAPHY    2023, 42 (10): 2058-2070.   DOI: 10.18306/dlkxjz.2023.10.016
    Abstract123)   HTML11)    PDF (1107KB)(96)      

    As human infrastructure activities are becoming increasingly frequent, the impact of infrastructure activities on human-land relationship and human social-spatial structure has triggered extensive discussions in human geography and other related disciplines. This study systematically discussed the research context and core issues of the feminist infrastructure geography studies. First, this study categorized the research literature on infrastructure in geography and found that the research on infrastructure in geography showed a trend of "social-cultural turn" that emphasizes that infrastructure is not only about its functional attribute, but also has multiple attributes, such as social and cultural ones. Second, from the perspective of feminist geography, this study emphasized the important value of gender and the related core-periphery perspective in the social-cultural turn in infrastructure research and pointed out that feminism can provide an excellent perspective with both micro and macro perspectives for analyzing the spatial effects of infrastructure. Third, based on the different impacts and paths of the heterogeneity of human society reflected in the gender perspective on the transformation and utilization of the environment by using infrastructure, this study outlined the main content of feminist infrastructure research based on the gender perspective from two different fields, namely, the gender difference at the producing end of infrastructure as well as at the using end of infrastructure. Based on such literature, this study finally built a core conceptual framework and analytical framework for feminist infrastructure geography studies. In the end, the developments of feminist infrastructure geography studies presented in this article also provide a good opportunity for an interdisciplinary dialogue on a larger and broader scale by other scholars broadly concerned with feminist topics.

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