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Can smart city development alleviate urban shrinkage in the traditional urban development process?

IF 6 1区经济学

Cities Pub Date : 2025-02-28 DOI: 10.1016/j.cities.2025.105847

DongLin Yuan , Jeewook Hwang

{"title":"Can smart city development alleviate urban shrinkage in the traditional urban development process?","authors":"DongLin Yuan , Jeewook Hwang","doi":"10.1016/j.cities.2025.105847","DOIUrl":"10.1016/j.cities.2025.105847","url":null,"abstract":"<div><div>This study investigates the potential of smart city pilot policies to mitigate population outflow in shrinking cities in China. Employing a quasi-natural experiment framework, we analyze the effects of these policies using a Difference-in-Differences (DID) model. The findings reveal several key insights. First, while smart city policies can effectively reduce population outflow in shrinking cities, their impact manifests over time, indicating a lag in effectiveness. And the effects fluctuate in the later stages due to the influence of government involvement and urban vitality. We further validate these conclusions through parallel trend and placebo tests. Second, there is significant heterogeneity in the effects of smart city policies: the initial batch of policies introduced in 2012 and the third batch launched in 2014 both demonstrate a positive influence on curbing population decline, with the strongest effects observed in the latter. Notably, these policies are particularly effective in the central and western regions of China, especially in cities characterized by low to medium economic size and fixed asset investment, but have shown poor effect in the eastern regions. However, high technological prerequisites remain essential for the successful implementation of smart city policies. This study aims to provide a comprehensive understanding of the impact of smart city policies on population migration patterns in shrinking cities, offering valuable insights for urban policymakers and practitioners to develop effective strategies for sustainable urban development.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105847"},"PeriodicalIF":6.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying tactical urbanism: Economic impact of short-term pedestrianization on retail establishments

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105803

Yuji Yoshimura , Kaoru Yamaoka , Paolo Santi

{"title":"Quantifying tactical urbanism: Economic impact of short-term pedestrianization on retail establishments","authors":"Yuji Yoshimura , Kaoru Yamaoka , Paolo Santi","doi":"10.1016/j.cities.2025.105803","DOIUrl":"10.1016/j.cities.2025.105803","url":null,"abstract":"<div><div>The street is increasingly recognized as a space for experiments in the tactical urbanism framework. Tactical urbanism is characterized by a quick and low-cost intervention aimed at improving public spaces for people in the long-term. Despite its growing popularity, no studies have quantitatively examined its impact on the surrounding environment. This study analyzed the economic impact of tactical urbanism on surrounding retail businesses. Long-term anonymized transaction datasets from a broader geographical area were used to assess the economic performance of retailers along the streets. Combined with a mobile device tracking methodology, this study examined whether the street experiment of pedestrianization attracted visitors from other districts or encouraged them to explore the district, to assess its economic impact on the neighborhood. The southern part of Midosuji Avenue in Osaka, Japan, and its neighborhood were chosen as the study area. The results showed that retailers' sales volumes in Midosuji Avenue and neighboring streets increased significantly during the event, resulting in enhanced sales volumes for the entire area. In addition, mobile device tracking verified that visitors moved from neighboring streets to Midosuji Avenue. Hence, Midosuji Avenue became a destination for visitors' trips rather than a starting point. This led them to explore the district, thus increasing their stay and, in turn, increasing the sales volumes in the neighborhood.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105803"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heterogeneous residential location effects: Variations in how suburban communities shape older adults' active travel—A case study from Xiamen

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105789

Cong Guo , Renlu Qiao , Zhiqiang Wu , Yaoqin Jiang , Yitong Yang , Zhao Yu , Wenqing Wan , Xinyuan Sun

{"title":"Heterogeneous residential location effects: Variations in how suburban communities shape older adults' active travel—A case study from Xiamen","authors":"Cong Guo , Renlu Qiao , Zhiqiang Wu , Yaoqin Jiang , Yitong Yang , Zhao Yu , Wenqing Wan , Xinyuan Sun","doi":"10.1016/j.cities.2025.105789","DOIUrl":"10.1016/j.cities.2025.105789","url":null,"abstract":"<div><div>Emerging research highlights the crucial role of the suburban older population as a burgeoning population facing both social and physical constraints on mobility. However, the extent to which the variance in the built environment can encourage older adults to travel actively across various suburban communities remains ambiguous. This study identifies three distinct community types (i.e., inner–suburban, suburban center, and outer–suburban) based on specific social and morphological factors impacting Xiamen, China. It employs coarsened exact matching (CEM), an innovative matching procedure, to estimate causal inference regarding older adults' responsiveness to the built environment across different communities compared with propensity score matching (PSM). The results reveal nonequilibrium effects of built environments across unevenly developed or suburbanized communities. Residents of suburban centers exhibit the highest levels of active travel engagement, with the built environment playing a significant role. This influence, driven by individual life choices, is particularly impactful in shaping sustainable urban forms within both inner and outer suburban cohorts. These findings can provide valuable insights for decision-makers, guiding the development of more nuanced and regionally inclusive intervention strategies, thereby accommodating disparities among suburban subareas.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105789"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The spatial relationship between police-monitored surveillance cameras and urban environment in Haining, China

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105846

Ziwan Zheng , Chao Jiang , Xiaomin Jiang , Jiayao Song , Miaoxuan Shan , Peng Chen

{"title":"The spatial relationship between police-monitored surveillance cameras and urban environment in Haining, China","authors":"Ziwan Zheng , Chao Jiang , Xiaomin Jiang , Jiayao Song , Miaoxuan Shan , Peng Chen","doi":"10.1016/j.cities.2025.105846","DOIUrl":"10.1016/j.cities.2025.105846","url":null,"abstract":"<div><div>While surveillance cameras have proliferated worldwide, little is known about their spatial pattern at the citywide scale and the underlying logic behind their placement. Taking the opportunity from a national project, this research aims to fill the knowledge gap by studying Haining City in China. The spatial effects of environmental factors on cameras are disentangled with spatial econometric models. The main findings are: 1) Surveillance cameras concentrate in urban centers and commercial areas, with their density decreasing outwards. 2) Robbery, rape, and pornography-related crime show the largest impact among all environmental factors. 3) Robbery only has a spatial spillover effect, while theft, injury, and gambling-related crime show only a small but significant local effect. Rape, pornography-, and drug-related crime have both significant but divergent local and spillover effects. 4) Among the five types of activity places, key sites and recreation/entertainment places have only a small but significant local effect, while specialized industry places show only a small but significant spillover effect. 5) The resident population does not have any significant effect. These findings provide direct scientific evidence for developing guidelines on the spatial placement of surveillance cameras at the city scale.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105846"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon peak evaluation and causal drivers of net carbon emission time-series dynamics in typical Chinese cities

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105856

Bingbing Zhao , Min Deng , Siuming Lo , Baoju Liu

{"title":"Carbon peak evaluation and causal drivers of net carbon emission time-series dynamics in typical Chinese cities","authors":"Bingbing Zhao , Min Deng , Siuming Lo , Baoju Liu","doi":"10.1016/j.cities.2025.105856","DOIUrl":"10.1016/j.cities.2025.105856","url":null,"abstract":"<div><div>Capturing the impact of socio-economic factors on urban net carbon emissions is critical for developing urban carbon policies. This study uses cluster and causal analyses on the net carbon emissions of 101 Chinese cities from 2005 to 2019, aiming to identify the driving factors behind different stages of emission growth in various types of cities. Firstly, this study divides cities into two development stages: continuous growth and fluctuating optimization, based on their carbon peak status. In both stages, clustering methods were used to identify city clusters with similar resource allocations, and strategies for their carbon peaks were proposed using Multispatial Convergent Cross Mapping causal analysis and meta-analysis. The findings indicate that in the fluctuating optimization stage, cities, predominantly primary industrial cities, show no significant causal driving effects from any single factor. This suggests that a multitude of factors collectively impact urban carbon emissions, highlighting the need for continuous monitoring. In the continuous growth stage, emissions in industry-led prosperous cities are driven by their industrial structure and economic growth, whereas in service-led prosperous cities, emissions are influenced by population density and urban expansion. These insights provide precise and effective environmental strategies tailored to the varied dynamics of urban settings.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105856"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the impacts of topography on characteristics of urban road network: A global empirical analysis

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105848

Xiaoyan Gu , Huanjiong Wang , Jinxin Lyu , Mengmeng Zhang , Quansheng Ge

{"title":"Exploring the impacts of topography on characteristics of urban road network: A global empirical analysis","authors":"Xiaoyan Gu , Huanjiong Wang , Jinxin Lyu , Mengmeng Zhang , Quansheng Ge","doi":"10.1016/j.cities.2025.105848","DOIUrl":"10.1016/j.cities.2025.105848","url":null,"abstract":"<div><div>Although a rough terrain surface can constrain the growth of urban road networks, a comprehensive analysis of the relation between topography and urban road networks is limited. We selected 100 cities around the globe as the study area, and further analyzed the relationship between 10 topographic metrics (representing terrain roughness and natural obstacles) and four road network characteristics (geometric and structural fractal dimensions, circuity, and orientation entropy). The empirical results revealed that the terrain roughness and water area imposed significant negative effects on geometric fractal dimension and positive effects on circuity. The mountain area was positively correlated with the orientation entropy of road networks due to their complex forms. Topographic metrics did not correlate with the structural fractal dimensions of road networks. All topographic metrics could explain 37.2 % and 31.5 % of the variance of geometric fractal dimension and circuity, respectively. At the block level, the correlations between topographic metrics and geometric fractal dimension/circuity were generally similar to those at the city level, but the magnitudes of the correlation coefficient were relatively smaller. These results enhanced our understanding of how topography affects the urban road network from a multi-scale perspective.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105848"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crime-associated inequality in geographical access to education: Insights from the municipality of Rio de Janeiro

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105818

Steffen Knoblauch , Ram Kumar Muthusamy , Maya Moritz , Yuhao Kang , Hao Li , Sven Lautenbach , Rafael H.M. Pereira , Filip Biljecki , Marta C. Gonzalez , Rogerio Barbosa , Daniel Veloso Hirata , Christina Ludwig , Maciej Adamiak , Antônio A. de A. Rocha , Alexander Zipf

{"title":"Crime-associated inequality in geographical access to education: Insights from the municipality of Rio de Janeiro","authors":"Steffen Knoblauch , Ram Kumar Muthusamy , Maya Moritz , Yuhao Kang , Hao Li , Sven Lautenbach , Rafael H.M. Pereira , Filip Biljecki , Marta C. Gonzalez , Rogerio Barbosa , Daniel Veloso Hirata , Christina Ludwig , Maciej Adamiak , Antônio A. de A. Rocha , Alexander Zipf","doi":"10.1016/j.cities.2025.105818","DOIUrl":"10.1016/j.cities.2025.105818","url":null,"abstract":"<div><div>Education is a fundamental right, supported by initiatives like Education for All (EFA) and the Millennium Development Goals (MDGs). Despite progress, full educational access remains challenging, particularly in highly criminal areas.</div><div>This paper examines the impact of crime on school access in the municipality of Rio de Janeiro. Using ancillary data and geospatial artificial intelligence (GeoAI), we downscaled official police crime records to street level. By considering different levels of crime tolerance in school path choices, we simulated how crime can force students to walk longer distances to avoid violence.</div><div>Our findings indicate a 48.60 % average increase in travel time to the closest school for students whose shortest routes intersect with high-crime areas. This adjustment reduces mean crime exposure by 44.10 % and maximum exposure by 81.94 %. Both individual crime risk aversion and no-go areas of criminal disputes significantly (p <span><math><mo>≤</mo></math></span> 0.05) impacted educational access. Estimating street-level crime exposure was challenging due to spatial bias in official and crowdsourced crime reporting.</div><div>These methods and insights are crucial for improving educational access in high-crime areas, providing a better understanding of barriers to equitable education, and being applicable to other cities and accessibility studies for various societal needs.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105818"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preventing, curing, mitigating: Anti-segregation policies in urban Finland

IF 6 1区经济学

Cities Pub Date : 2025-02-27 DOI: 10.1016/j.cities.2025.105838

Hannu Ruonavaara , Jarkko Rasinkangas , Katriina Rosengren

{"title":"Preventing, curing, mitigating: Anti-segregation policies in urban Finland","authors":"Hannu Ruonavaara , Jarkko Rasinkangas , Katriina Rosengren","doi":"10.1016/j.cities.2025.105838","DOIUrl":"10.1016/j.cities.2025.105838","url":null,"abstract":"<div><div>The purpose of this research is (1) to develop a conceptual framework for analyzing policies against residential segregation and (2) to apply it in inquiring about anti-segregation policy (ASP) inthree core cities in Finland: Helsinki, Tampere, and Turku. First, we develop a functional typology of preventive, curing, and mitigating ASP. Second, we cross-tabulate it with an operational typology of three kinds of ASPs, population dispersion, social mixing, and area-based projects, to create a combined typology of ASPs. With the help of combined typology, we analyze our primary empirical material and policy documents in the three cities. We ask two questions: 1) How do the three cities respond to a growing concern about residential segregation and its negative consequences? 2) How do their responses relate to our combined typology of ASPs? We find no notable differences in the palette of ASPs used in the three cities. However, Helsinki differs to some extent from the other two with its longer history of ASP and wider coverage of different policy instruments. All three cities use preventive and, to some extent, curing social mixing policies: trying to balance population structure in planning new neighborhoods and infill building in old neighborhoods. All cities use mitigating area-based policies, such as social policy interventions in vulnerable neighborhoods. We can tentatively say that this is the Finnish approach to segregation prevention. It does not include curing dispersal measures such as demolishing housing estates to change the population structure or limiting the share of particular population groups in residential areas.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105838"},"PeriodicalIF":6.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Political and cultural memory in urban space: Public naming practices in Northern Cyprus

IF 6 1区经济学

Cities Pub Date : 2025-02-26 DOI: 10.1016/j.cities.2025.105851

Filiz Soyer , Elif Asude Tunca

{"title":"Political and cultural memory in urban space: Public naming practices in Northern Cyprus","authors":"Filiz Soyer , Elif Asude Tunca","doi":"10.1016/j.cities.2025.105851","DOIUrl":"10.1016/j.cities.2025.105851","url":null,"abstract":"<div><div>This study examines the socio-political and cultural dimensions of place-naming in Northern Cyprus, revealing how names of streets, squares, and public spaces act as markers of collective memory and identity in a politically complex landscape. Focusing on 18 municipalities, this research demonstrates how place-naming reinforces Turkish Cypriot identity, embedding historical narratives and political symbolism into everyday environments. Contextualized within a broader comparative framework—including post-conflict and post-authoritarian regions such as Eastern Europe and Spain—the study reveals place-naming as both a symbolic and functional practice.</div><div>Using a dual-methodological approach, the study combines qualitative analysis to interpret socio-political narratives embedded in place names with quantitative analysis to categorize and visualize naming patterns across municipalities. This integrated approach highlights the complexity of place-naming practices, identifying four primary categories: Important Figures, Important Dates, Martyrs and Veterans, and Neutral Names. Findings indicate that historical and political names are concentrated in specific municipalities, while neutral names are more prevalent in newer developments, suggesting an evolving approach to public memory.</div><div>This study contributes to memory and identity studies, demonstrating how place-naming functions as a dynamic expression of public memory, political ideology, and cultural continuity in Northern Cyprus. Future research could expand upon this study by examining local perceptions of place-naming or conducting longitudinal analyses to observe how political and social shifts impact naming conventions.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105851"},"PeriodicalIF":6.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Housing adequacy in Delhi, Dhaka and Karachi: Strategies for promoting sustainable and inclusive housing

IF 6 1区经济学

Cities Pub Date : 2025-02-25 DOI: 10.1016/j.cities.2025.105779

Sohail Ahmad , Faisal Munir , Ram Avtar , Tanjil Sowgat , Debolina Kundu , Ya Ping Wang

{"title":"Housing adequacy in Delhi, Dhaka and Karachi: Strategies for promoting sustainable and inclusive housing","authors":"Sohail Ahmad , Faisal Munir , Ram Avtar , Tanjil Sowgat , Debolina Kundu , Ya Ping Wang","doi":"10.1016/j.cities.2025.105779","DOIUrl":"10.1016/j.cities.2025.105779","url":null,"abstract":"<div><div>Access to adequate housing is one of the major challenges in the rapidly urbanising megacities of the Indian subcontinent. This study examines variations in housing adequacy and its determinants in Delhi, Dhaka and Karachi. It investigates potential planning interventions to improve housing conditions, drawing on urban policies, programmes and insights from Demographic and Health Surveys. Findings reveal severe housing inadequacy, with four out of ten households living in inadequate housing. Notably, certain socio-cultural disadvantaged communities experience exceptionally poor housing conditions. Income inequality is identified as the most important factor contributing to housing inadequacy, followed by inhabitants' socio-cultural backgrounds and educational attainment. Dhaka and Karachi have made considerable progress in housing adequacy, whereas Delhi's progress has stalled. A key challenge remains the need to expand living spaces, although Dhaka also requires improvement in urban amenities. To achieve sustainable and inclusive housing, it is crucial to enhance access to adequate living spaces, particularly among disadvantaged communities, establish interlinkages between housing adequacy and socio-economic conditions and reimagine urban governance systems.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"160 ","pages":"Article 105779"},"PeriodicalIF":6.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0