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نتیجه جستجو - Yangtze River Delta

تعداد مقالات یافته شده: 3
ردیف عنوان نوع
1 The influence of highway on local economy: Evidence from Chinas Yangtze River Delta region
تاثیر بزرگراه در اقتصاد محلی: شواهدی از منطقه دلتای رود یانگ تسه چین -2020
Highway network has been constructed on a massive scale in recent decades, potentially reshaping the spatial economic pattern in China. This paper aims to investigate the influence of highway on local economic growth by exploiting county-level data of Chinas Yangtze River Delta region from 1993 to 2013. We employ a differencein- differences (DID) model and control several determinants of highway location to lessen the endogeneity bias brought by non-random selection. Considering the possible impact of endogeneity, spatial dependence and unobservable variables on estimation, we conduct propensity score matching, instrumental variable estimates, spatial DID method and placebo tests to ensure the robustness of results. Our analysis shows that: (1) The opening of highway significantly stimulates the county economy, with an increasing trend on the year by year basis. (2) Highway has heterogeneous effects in terms of different locations, provinces and industries. Counties closer to the central city, in Jiangsu province or with bigger service sector, benefit more from highway operation. (3) Highway can generate an increase in market potential and then in local economic growth. In this process, highway mainly promotes the economy through the way of attracting investment and facilitating consumption. The mechanism through labor is not significant.
Keywords: Highway | Economic growth | County | Quasi-natural experiment | Difference-in-differences model | Yangtze River Delta region
مقاله انگلیسی
2 City-specific vehicle emission control strategies to achieve stringent emission reduction targets in Chinas Yangtze River Delta region
استراتژی های کنترل انتشار خودرو از سوی شهر برای رسیدن به اهداف دقیق کاهش انتشار در منطقه ی دلتای رودخانه یانگ تی چینی-2017
The Yangtze River Delta (YRD) region is one of the most prosperous and densely populated regions in China and is facing tremendous pressure to mitigate vehicle emissions and improve air quality. Our assessment has revealed that mitigating vehicle emissions of NOx would be more difficult than reducing the emissions of other major vehicular pollutants (e.g., CO, HC and PM2.5) in the YRD region. Even in Shanghai, where the emission control implemented are more stringent than in Jiangsu and Zhejiang, we observed little to no reduction in NOx emissions from 2000 to 2010. Emission–reduction targets for HC, NOx and PM2.5 are determined using a response surface modeling tool for better air quality. We design city-specific emission control strategies for three vehicle-populated cities in the YRD region: Shanghai and Nanjing and Wuxi in Jiangsu. Our results indicate that even if stringent emission control consisting of the Euro 6/VI standards, the limitation of vehicle population and usage, and the scrappage of older vehicles is applied, Nanjing and Wuxi will not be able to meet the NOx emissions target by 2020. Therefore, additional control measures are proposed for Nanjing and Wuxi to further mitigate NOx emissions from heavy-duty diesel vehicles.
Keywords: Vehicle | Emission control | Scenario | Yangtze River Delta
مقاله انگلیسی
3 Nanjing-an ancient city rising in transitional China
نانجینگ-شهرستان باستانی رو به افزایش در چین انتقالی-2016
Nanjing, the capital city of six different dynasties in history, is the provincial capital of Jiangsu Province, China. Historic, political and locational endowments have already propelled Nanjing into becoming one of the sub- centers of the Yangtze River Delta (YRD), China's emerging global city region. This City Profile summarizes the historical development of Nanjing from the Wu Kingdom in the Three Kingdoms Period to 1978, as well as the contemporary development in the last three decades. Striving to become a stronger regional center, Nanjing is undergoing a profound restructuring of its economic and, more importantly, its physical form and appearance. To face the challenges, Nanjing has undergone spatial planning to enhance its competitive strength. We outline the historical development (including the ancient, old, and modern periods), current urban and economic devel- opment, spatial planning, regional cooperation, and future development.© 2015 Elsevier B.V. All rights reserved.
Nanjing | Urban expansion | Economic and spatial development | Spatial planning
مقاله انگلیسی
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بازدید امروز: 1794 :::::::: بازدید دیروز: 0 :::::::: بازدید کل: 1794 :::::::: افراد آنلاین: 36