改革者手中的金钥匙——马鞍山农商行业务创新之路纪实

近年来,随着马鞍山经济发展速度的不断加快,尤其是马鞍山被划入皖江城市带承接产业转移示范区以后,面积并不大的马鞍山正在成为商业资本眼中的一座金矿。巨大的商业发展前景,吸引着大量的产业和资本加速进入这座新生的城市。在产业资本加速抢滩的热潮中,另一场金融资本的角力也在悄然间展开。近两年,     

皖江城市带经济差异与其自然地理成因分析

通过2001～2006年的城市经济统计资料的对比,得出皖江城市带的流域经济特征:一是区段性,皖江段处在长江流域经济的低谷,巢湖"大湖经济"不突出;二是差异性,皖江城市带内部发展不平衡,存在东西差异和南北差异,具有流域空间分异特征;从自然地理要素角度来看,断裂、地形地貌差异、洪灾差异、冲洪积平原面积差异以及区域自然地理特征对现代交通布局和航运的影响等是造成皖江城市带经济差异性的自然原因.     

皖江城市带城市能级与生态环境耦合协调发展评价及空间差异分析

围绕城市能级和生态环境构建评价指标体系,采用熵值法对各指标的权重及得分进行定量处理,运用耦合度协调度模型对皖江城市带城市能级与生态环境的耦合协调发展水平进行测算。从时间角度看,2007~2011年,皖江城市带城市能级与生态环境间的协调度不断提高,但耦合度存在波动。从空间角度看,皖江城市带各市生城市能级与生态环境的耦合协调发展情况存在差异,可分为能级主导型、协调发展型、环境主导型、滞后发展型四类。结合皖江城市带城市能级与生态环境耦合协调发展的时空特征提出相应建议。     

皖江低碳城市带建设评价

通过对皖江低碳城市带建设实践进行分析的基础上,得出皖江低碳城市带建设评价等级为一般,结合皖江低碳城市带建设存在的主要问题,提出建设皖江低碳城市带的对策建议。     

皖江城市带承接产业转移土地供应保障问题与思考

2010年1月21日国务院正式批复《皖江城市带承接产业转移示范区规划》,作为首个获批的国家级承接产业转移示范区,安徽省特别是示范区规划范围内的59个县(市、区)的加速崛起迎来了重大战略机遇。据了解,一年多来示范区内各县区发展进程明显加快,发展势头进一步迅猛,主要     

皖江城市带物流产业集群发展研究

物流业作为生产性服务产业,在承接产业转移中,结合区域产业发展特征,集群式发展是区域物流发展的必然选择。本文在剖析皖江城市带物流产业集群发展内在机理的基础上,探寻城市带物流产业集群发展的影响因素以及存在的问题,提出城市带物流产业集群发展路径。     

芜湖市物流业与制造业联动发展战略研究

芜湖市是皖江城市带核心城市,在承接产业转移过程中,物流业与制造业发展并不协调。本文从芜湖市物流业与制造业发展现状出发,指出联动发展过程中的不足,提出芜湖市物流业与制造业联动发展的措施。     

合肥经济圈与皖江经济带产业同构问题

本文选定合肥经济圈和皖江经济带为研究对象,从三次产业、工业和第三产业内部结构三个方面着手,应用相似系数指标,分析两大经济圈产业同构现状与变化,并提出对策。     

安徽地区承接东部产业转移建设研究

皖江城市带规划建设以来,安徽地区积极承接东部产业转移,并从政府、政策、基础设施、产业集群、生态环保等方面提升自己的产业转移承接力,积极招商引资,促进当地经济发展。     

皖江示范区政府官方微博建设研究

近年来,微博作为一种新的舆论平台为公众提供了更大的话语空间和自主性,全国范围内兴起政务微博建设的热潮。2010年1月12日,国务院正式批复《皖江城市带承接产业转移示范区规划》,是迄今为止全国唯一以产业转移为主题的区域发展规划。文章通过对皖江示范区政府官方微博建设的研究,探讨皖江示范区政府官方微博建设的成效及不足,为皖江示范区政务微博建设提出可供参考的建议。     

污染排放约束下长江经济带农业绿色水资源利用效率研究

基于超效率SBM模型和GML指数对2011—2019年长江经济带农业绿色水资源利用效率进行了时空差异分析及动态演变趋势分析,并在此基础上运用Tobit回归模型实证检验了农业绿色水资源利用效率的影响因素。研究结果表明:2011—2019年长江经济带农业绿色水资源利用效率整体时序变化平稳,但内部空间差异显著;多数地区的技术效率水平未跟上行业技术变革的步伐;政府管控水平、农田水利建设水平等对农业绿色水资源利用水平呈显著正向影响。指出长江经济带各地区应通过创新农业用水方式、挖掘节水减排潜力等方式来改善其农业水资源利用现状。     

Are we underestimating the economic costs of wildfire smoke? An investigation using the life satisfaction approach

Understanding the economic costs imposed by wildfire smoke is important to evaluating competing fire management approaches and setting appropriate mitigation budgets. The nascent literature on wildfire smoke costs has largely examined the indirect health costs associated with individuals’ exposure to smoke. However, this ignores the direct costs of wildfire smoke, that is, the costs that smoke creates by directly affecting an individual's utility. Direct costs may arise from smoke-induced changes in visibility of scenic amenities or disruptions to ecosystem services that individuals see value in preserving. For the first time, the life satisfaction approach is applied to estimate wildfire smoke economic costs faced by individuals from direct and indirect sources. Using nationally-representative data from the US Behavioral Risk Factor Surveillance System over 2006–2010, results suggest that US adults are willing to pay $373 [95% CI: $86.8, $659.2] to avoid one day of wildfire smoke over their county of residence within a six month period. Residents of rural areas are willing to pay $130 more to avoid one smoke day than urban residents. These results are higher than extant willingness to pay estimates of indirect smoke-induced health impacts, suggestive that the true costs of wildfire smoke are larger than previously estimated.     

The influence of proximity to market on bean producer prices in Nicaragua

Transport costs are an important determinant of smallholder welfare in developing countries. In particular, transport costs influence the prices that smallholders receive for their produce. We propose a simple way of quantifying this influence. Taking the example of bean producers in Nicaragua, we employ a hedonic price model to estimate the effects of a smallholder's proximity to markets on the prices that he/she receives, while controlling for other factors such as the volume and quality of beans sold. We find that on average each additional minute of travel time reduces farm gate prices by 2.5 cents per quintal. Based on these results, the annual income from bean sales of the average smallholder in our sample would increase by between 24 and 110 USD if travel time to markets were reduced by 25%. Estimates of this nature can make an important contribution to cost–benefit assessments of infrastructure investments.     

四川秦巴山区城镇等级规模研究——基于城镇化的多维度响应视角

目前,我国城镇化发展处于机遇与挑战并存的关键时期,四川秦巴山区是国家和省级重点连片扶贫开发区,成为关中平原城市群与成都平原城市群发展的洼地,制约了西部地区的整体发展水平。因此,在"一带一路"战略和"秦巴山区绿色循环发展"战略的推进下,加强四川秦巴山区城镇化建设具有重要意义。以四川秦巴山区为研究区域,以集聚—碎化指数、重力模型理论为依据,结合经济、人口、社会、地理空间等4方面指标从多维度的角度来研究四川秦巴山区现状城镇等级规模、城镇聚集程度和城镇空间关系,并通过变异系数、城镇中心性和城镇发展实力分析,探索城镇等级规模变化趋势,以期为四川秦巴山区的城镇等级规模结构优化和发展提出一定依据与建议。     

Situating community forestry enterprises within New Institutional Economic theory: What are the implications for their organization?

Community forestry enterprises (CFEs) have gained considerable traction with rural development and forestry practitioners as models for community development, poverty alleviation, and conservation. This paper uses New Institutional Economic theory to identify the key organizational features and potential inherent weaknesses of CFEs. NIE theory focuses on arguments of economic efficiency, specifically transaction cost reductions that serve as incentives for collective action by groups of owners. Examples are given to show how the organization of CFEs reduced transaction costs stemming from interactions with industrial loggers and service providers. However, the creation of these community enterprises goes beyond simple transaction cost reductions and economic justifications. Additional unquantifiable benefits, such as self-determination, control over resources that communities have historically used, application of acquired skills, political representation, and application of acquired skills to name a few, are also secured through community ownership. These benefits however do not come without a cost. As enterprises where ownership rights are incomplete or ill-defined and which do not operate with the incentives of investor-owned firms, CFEs have little to no initial capital pool and experience considerable investment limitations due to limited wealth, horizon problems, and unsolved issues with moral hazard vis-à-vis banks. CFEs also face important management and collective decision-making challenges. In spite of their institutional weaknesses, it is apparent that many societies have decided that the benefits of community ownership far outweigh their ownership costs. State intervention and policy have played an important role in building the necessary supportive framework for the development of these enterprises. NIE as a dominant model for understanding alternative entrepreneurial forms was useful for identifying some important aspects of CFEs that, in a profit-driven economy, can constitute weaknesses that place them at a disadvantage with investor-owned firms. This analysis informs where policy should be targeted if CFEs are to be supported and fostered.     

Farmers' Perceived Costs of Wetlands: Effects of Wetland Size, Hydration, and Dispersion

We survey landowners to investigate the costs associated with the presence of permanent or seasonal wetland areas in cropland. We find, as predicted by our conceptual model, that dispersion of wetland areas imposes substantial inconvenience costs for producers but that costs respond nonlinearly and irregularly to changes in the frequency of hydration. Producer attitudes toward conservation and environmental regulation have a significant impact on perceived costs, as do some demographic attributes. The analysis suggests that incentives to aggregate dispersed wetlands into larger contiguous areas could benefit landowners and at the same time provide a net increase in wetland area.     

低效产业用地目标识别与二次开发策略研究

产业用地的低效利用是造成我国建设用地效益低下的重要原因。本文以典型地区广州市白云区产业用地为例,对2012年多时相SPOT/QuickBird遥感影像图进行低效产业用地的信息提取研究,并在调查问卷基础上,分析其形成的主要原因,最后提出低效产业用地的二次开发的策略与措施。主要结论有:(1)利用遥感与GIS技术可以实现在高分辨率遥感影像中低效产业用地信息提取;(2)白云区低效产业用地面积大,占建设用地总面积的比例较高;(3)低效产业用地形成的主要原因包括规划与审批、地理位置等因素;(4)城乡统筹是进行低效产业用地再开发、提升其利用效率的根本途径,同时也可以为我国新型城镇化与城乡统筹发展拓展空间提供用地保障。     

新型城镇化、产业结构升级与水污染关系研究

基于2008—2017年长江经济带9省2市的面板数据,运用脱钩-PVAR两阶段模型对新型城镇化、产业结构升级与水污染关系的演变趋势和影响机制进行分析。研究发现:水污染与新型城镇化、产业结构升级的关系皆呈现扩张负脱钩—强脱钩的演变趋势,说明长江经济带城镇化与工业化经历了先污染后治理的阶段,但最终实现了经济发展与水污染状况改善的双重目标。脉冲响应与方差分解的结果表明,现阶段新型城镇化的水污染治理效应并不明显,水污染与产业结构升级之间存在着明显的负向关系,且前者对后者的解释作用较强。分别对长江经济带的上、中、下游进行方差分解,发现各变量间的相互影响程度存在明显的区域差异,制定水污染防治政策时不可一概而论。     

长江经济带省域农业比较优势分析及协同发展对策

[目的]通过分析长江经济带农业协同发展的优势条件及限制性因素,以及各省域农业比较优势,为长江经济带农业协同发展提供科学依据。[方法]文章用实证分析法,采用农业相对比重指标(AG)和显示性比较优势指标(RCA)对长江经济带各省域农业相对比重和比较优势进行深入剖析,并分析了近几年长江经济带各省域农业的相对比重和显示性比较优势的变化趋势。[结果]长江经济带整体农业占其经济总量比重较低,农业相对比较优势不明显;各省市的农业比重和相对比较优势差异明显;近年来,长江经济带农业比重和比较优势波动平缓,甚至有略微下降趋势。[结论]应加强各省域农业部门合作,做好发展规划,强化顶层设计;充分发挥农业比较优势,优化区域农业布局;利用辐射效应,加强农业发展要素流通;积极创新农业发展新业态,建立农业协同发展激励机制。此外,完善和统筹长江经济带区域农业公共服务和基础设施建设是推动沿江省市农业协同发展的前提和必要保障。     

农业生产性服务业对城乡收入差距的影响及路径研究基于珠江—西江经济带的中介效应检验

目的 通过分析珠江—西江经济带农业生产性服务业与城乡收入差距之间的关系,农业生产性服务业对城乡收入差距既有直接作用又有间接作用。方法 文章从产业结构调整与城镇化这两个角度,利用2005—2018年珠江—西江经济带市级层面的面板数据,采用LSDV估计方法与IV-GMM估计方法检验了农业生产性服务业对城乡收入差距的影响机制。结果 发展农业生产性服务业既能通过降低农业生产成本、提高生产效率直接缩小城乡收入差距,又能通过产业结构调整以及推进城镇化进程这两个间接途径来缩小城乡收入差距。结论 农业生产性服务业对城乡收入差距的直接与间接影响显著。带域内各城市要明确发展定位,充分利用其资源优势有效衔接农业生产性服务业,优化产业布局;加快推进带域内各城市城镇化进程,为城乡收入差距的缩小创造条件,充分发挥产业结构调整与城镇化的中介作用。