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101.
党的十九大报告提出了“实施乡村振兴战略”。乡村振兴是“中国梦”不可或缺的组成部分,城市化进程中的乡村衰落现象不容忽视,乡村问题的解决关系到乡村振兴战略能否实现和现代乡村能否建成。为此,剖析了我国乡村衰落的成因,探索了乡村振兴战略落实的办法,提出了现代乡村建设的可能路径。 相似文献
102.
103.
为了降低棚改PPP项目中的风险,提高社会资本参与棚改PPP项目的积极性,以社会资本方为研究视角。通过文献回顾和案例分析,总结社会资本参与棚改PPP项目面临的主要问题,筛选出社会资本参与棚改PPP项目面临的17个主要风险因素;运用DEMATEL法分析各风险因素的重要程度及相互影响关系,确定政府信用风险、相关法律法规不健全风险、市场收益不足风险、规划设计风险为关键风险因素;针对关键风险因素提出社会资本方防范措施,即多举措并举、细化合同条款、合理界定棚改PPP项目使用者付费范围、选择实力强的设计院是防范社会资本的有力措施。研究结果为分析棚改PPP项目风险提供了新思路,有助于提高社会资本参与棚改项目的积极性,所提对策对社会资本合理规避棚改PPP项目关键风险具有重要的借鉴意义。 相似文献
104.
A separation between the academic subjects statistics and mathematical statistics has existed in Sweden almost as long as there have been statistics professors. The same distinction has not been maintained in other countries. Why has it been kept for so long in Sweden, and what consequences may it have had? In May 2015, it was 100 years since Mathematical Statistics was formally established as an academic discipline at a Swedish university where Statistics had existed since the turn of the century. We give an account of the debate in Lund and elsewhere about this division during the first decades after 1900 and present two of its leading personalities. The Lund University astronomer (and mathematical statistician) C. V. L. Charlier was a leading proponent for a position in mathematical statistics at the university. Charlier's adversary in the debate was Pontus Fahlbeck, professor in political science and statistics, who reserved the word statistics for ‘statistics as a social science’. Charlier not only secured the first academic position in Sweden in mathematical statistics for his former PhD student Sven Wicksell but also demonstrated that a mathematical statistician can be influential in matters of state, finance as well as in different natural sciences. Fahlbeck saw mathematical statistics as a set of tools that sometimes could be useful in his brand of statistics. After a summary of the organisational, educational and scientific growth of the statistical sciences in Sweden that has taken place during the last 50 years, we discuss what effects the Charlier–Fahlbeck divergence might have had on this development. 相似文献
105.
Extreme land abandonment is one of the most visible expressions of urban decline. Conventional theory emphasizes housing lifecycle processes, municipal fiscal challenges and deindustrialization to explain its prevalence. Empirically however, these factors are not strongly associated with the most extreme instances of land abandonment in the American Rust Belt. Race, by contrast, is strongly associated with these patterns, yet there is little mention of it in conventional theory. This article draws on group threat theory to explain how the construction of Blackness as a threat to white property, power and political influence, has propelled the production of extreme land abandonment. The constructed threat has translated into a sustained suppression of demand and capital for overwhelmingly black neighborhoods. These forces operate both independently and as an accelerant for other abandonment drivers. 相似文献
106.
针对M企业A生产线在制品积压、交付周期长等问题,通过现状价值流图分析其原因,提出在考虑改善效益大于投入成本的条件下,选择合适的自动化水平,以克服物料供应不及时、工艺特性等制约因素。从工艺流程、布局、工装等方面进行改善并绘制未来价值流图,创建生产线连续流。生产线连续流创建后,生产周期缩短了13天、搬运距离减少41m、车间面积节省约168m2、作业人数减少6人,为企业降本增效打下了坚实基础。 相似文献
107.
Binlei Gong 《新兴市场金融与贸易》2018,54(15):3438-3453
The “industry nurturing agriculture” reforms and World Trade Organization accession led to dramatic growth in public expenditure and international trade in China’s agricultural sector. This article aims to estimate the effects of public expenditure and trade on agricultural productivity in China for 2004–2015. A semi-parametric production function with shape constraints is introduced to derive more accurate productivity before the productivity determinants are analyzed with an emphasis on public expenditure and trade. The empirical result shows that public expenditure and exports can effectively improve agricultural productivity, while imports have no significant effects. Policy implications are discussed in the context of supply-side reforms. 相似文献
108.
陈杰 《中国农业资源与区划》2018,39(9):298-303
[目的]休闲观光农业建设是绍兴市产业转型升级的关键一步,探寻休闲观光农业新模式,能够为休闲农业发展提供理论参考。[方法]文章采用变异系数法确定指标权重,多因素综合分析法测算观光农业发展水平,从循环经济角度出发,评价2001—2016年绍兴市休闲观光农业发展可持续性,提出发展中存在的问题并探索循环型的休闲观光农业新模式。[结果](1)2001—2016年以来,经济发展可持续性得分较高,资源环境可持续得分次之,循环经济可持续发展偏低。(2)现阶段绍兴市休闲观光农业发展主要存在休闲观光农业自然环境不断遭到破坏,休闲观光农业缺乏整体规划,休闲观光农业旅游支撑体系不够健全等问题。(3)未来发展中,循环经济发展下的休闲观光农业可以开发建设时空复合循环型、资源综合利用循环型、能量多级利用循环型、综合开发利用循环型等4种模式。[结论]未来绍兴市应将循环经济的理念融入到休闲观光农业中,因地制宜,科学选择循环型休闲观光农业发展模式; 规划先行,科学利用农业旅游资源; 强化保障,建立休闲观光农业支撑体系,全面推动休闲观光农业健康持续发展。 相似文献
109.
Yubing Sui 《新兴市场金融与贸易》2018,54(2):377-392
Using data from a large household survey, we investigate the size of China’s urban–rural gap in ownership of bank deposits, risky financial assets, and credit cards. We further examine the factors underlying the gap using decomposition analysis. Compared to their urban counterparts, rural Chinese are much less likely to own a variety of financial products. Both demand-side barriers and supply-side barriers to financial inclusion exist in China. More, we use instrumental variable analysis to address the endogeneity of the local supply of financial service. Above all, our study indicates that a large financial services vacuum in rural areas needs to be filled. 相似文献
110.
生态山岳的旅游健康发展程度对山地旅游资源的可持续利用具有重要的影响。采用层次分析法和熵权法对2018年西北地区的华山、麦积山和天山天池的旅游生态健康进行了分析。结果表明:三大山岳景区旅游健康发展均处于健康状态;在资源健康方面,天山天池表现为非常健康,华山和麦积山处于健康等级;在环境健康方面,麦积山处于非常健康,华山和天山天池处于健康等级;在经济健康和旅游社会方面,三大景区均表现为健康。 相似文献