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1.
城市绿色空间系统规划是城市规划的重要方面,也与城市形象息息相关。文章以浙江省永康市副中心城镇为例,探讨城镇密集地区绿色空间系统规划的内容及方法,主要包括城镇污染综合防治、总体布局及景观规划三个方面的内容。 相似文献
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Mario Larch Pehr‐Johan Norbck Steffen Sirries Dieter M. Urban 《The World Economy》2016,39(9):1307-1338
Despite the strong pace of globalisation, the distance effect on trade is persistent or even growing over time (Disdier and Head, 2008). To solve this distance puzzle, we use the recently developed gravity equation estimator from Helpman et al. (2008) (HMR henceforth). Using three different data sets, we find that the distance coefficient increases over time when ordinary least squares (OLS) is used, while the non‐linear estimation of HMR leads to a decline in the distance coefficient over time. The distance puzzle, thus, arises from a growing bias of OLS estimates. The latter is explained by an increase in the importance of the bias from omitting the number of heterogeneous exporting firms relative to the bias from omitting zero trade flows. Furthermore, we show that including zero trade flows cannot solve the distance puzzle when using HMR. The HMR estimates are strongly correlated with the time pattern in freight costs reported by Hummels (2007). 相似文献
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江苏省城市发展研究院课题组 《江南论坛》2006,(11):16-18
区域经济一体化是走向全球经济一体化的一个台阶和现阶段的较优途径;也是国际和地区经济社会发展中竞争与合作的重要表现形式。 相似文献
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Christoph Moser Dieter Urban Beatrice Weder di Mauro 《Journal of International Economics》2010,80(2):302-317
This study investigates the impact of international competitiveness on net employment, job creation, job destruction, and gross job flows for a representative sample of German establishments from 1993 to 2005. We find a statistically significant but economically small effect of real exchange rate shocks on employment, comparable to the one found in studies for the United States. However, contrary to the United States, the employment adjustment (among surviving firms) operates mainly through the job creation rather than the job destruction rate. Job destruction occurs essentially through discrete events such as restructuring, outsourcing and bankruptcy. We suggest that these findings are consistent with a highly regulated labor market, in which smooth adjustment is costly and possibly delayed. 相似文献
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