中国农村减贫成效测度、分解及影响因素研究——基于分布动态学框架的CFPS数据分析

测算农村减贫成效并考察减贫成效的影响因素对我国打赢"脱贫攻坚战"具有重要的现实意义。本文基于覆盖我国东、中、西和东北四大地区的CFPS调查数据,在Quah(1997)的分布动态学(Distribution dynamics)基础上构建了完整的减贫成效分析框架。首先测算出各地区农村家庭贫困内部状态的Markov转移概率矩阵,并在此基础上构建了可分解的绝对、相对减贫指数,以综合考察各地区的农村减贫成效,随后本文通过首次构造的"条件Markov模型"进一步考察了减贫成效的影响因素。研究结果发现:(1)样本考察期内,我国各地区的农村贫困状况随着时间的积累逐渐变好,贫困发生率均有所下降;(2)减贫过程中仍存在着脱贫又返贫的现象,农村家庭的深度贫困固化问题比轻度贫困问题更加严重,意味着扶贫开发工作正式进入攻坚时期,扶贫难度加大;(3)家庭成年成员特征、家庭特征以及收入类型对农村减贫成效的影响显著性情况存在着时段和区域的异质性。其中,家庭成年成员受教育水平、家庭中是否有成员从事有薪酬的农业劳动、工资性和营业性收入对家庭的贫困状态变动具有更显著的影响。基于此,政府应贯彻落实精准扶贫,将扶贫重点放在中西部地区和处于深度贫困的家庭,另外应再调整和倾斜扶贫资源与扶贫政策,将提高农民受教育水平、增加非农业就业机会作为主要减贫途径,将促进农村工资性和营业性收入增长作为主要的政策倾斜方向。     

"交保证金"的报酬政策在中国存在的原因解析--一种扩展的夏皮罗-斯蒂格利茨模型

本文通过建立一种扩展的夏皮罗—斯蒂格利茨模型，解释了“交保证金”的报酬政策在中国存在的原因。当劳动力处于买方市场时，工人在失业和就业两者之间严格偏好于就业，厂商有可能采取“交保证金”的报酬政策，那么，厂商就可以支付较低的实际工资，获得较好的监督效果，使工人努力工作。厂商以较低的工资雇佣工人，可以使劳动力市场的就业人数有所增加，但由于并不是所有工人都能够通过“交保证金”而实现就业，故这一报酬政策不能使市场出清。     

Analyzing the global human appropriation of net primary production — processes, trajectories, implications. An introduction

Humanity's role in shaping patterns and processes in the terrestrial biosphere is large and growing. Most of the earth's fertile land is used more or less intensively by humans for resource extraction, production, transport, consumption and waste deposition or as living space. Biomass production on cropland, grazing areas and in managed forests dominates area requirements, but other processes such as soil degradation, human-induced fires and expansion of settlements and infrastructure play an increasingly important role as well. The growing human domination of terrestrial ecosystems contributes to biodiversity loss as well as to a reduced capability of ecosystems to deliver vital services such as buffering capacity, soil conservation or self-regulation. This special section is devoted to the presentation of recent research into the patterns, determinants and implications of the human appropriation of net primary production (HANPP), an integrated socio-ecological indicator of land use intensity. By measuring the combined effect of land conversion and biomass harvest on the availability of trophic energy (biomass) in ecosystems, HANPP explicitly links natural with socioeconomic processes and allows for integrated analyses of land systems. This introductory article explains the rationale that links current HANPP research to Ecological Economics and discusses issues of definition and methods shared by all articles included in the special section. Finally, it gives an overview of the individual papers, provides some general conclusions and presents an outlook for future research: a better understanding of long-term trajectories of HANPP, of the significance of trade patterns as well as of the future role of bioenergy are highlighted as important issues to be addressed in the coming years.     

利益集团视角下的三农问题现状及对策研究

本文针对三农问题,首先运用集体行动理论,考察农民群体无法形成有竞争力的利益集团的原因：在此基础上通过建模构划出政府决策机制作为框架,对政府决策过程中力量悬殊的利益集团和群体之间的博弈结果进行分析;进而考察了现实中政府的城市偏向性政策形成的机理;最后从促成农民利益集团的形成、增强农民利益群体的力量和优化博弈三个角度提出政策建议。     

“主体-技术”协同视角下的战略性新兴产业创新网络分类研究——以新能源汽车产业为例

本文以“主体-技术”协同视角来分析战略性新兴产业创新网络形成的内在机理和分类模式。在结合2-模网络理论基础上,从核心技术和创新主体两个维度出发,将战略性新兴产业创新网络分为单核心实验室型、单核心产业链型、单核心辅助型、单核心复合型、多核心实验室型、多核心产业链型、多核心辅助型和多核心复合型。同时,以中国新能源汽车产业为例,通过实证分析发现：除了单核心辅助型和多核心辅助型之外,其它6种模式均存在,并进一步对其创新网络的分类模式及相关特征进行了全面分析。     

On Crop Biodiversity, Risk Exposure, and Food Security in the Highlands of Ethiopia

This paper investigates the effects of crop genetic diversity on farm productivity and production risk in the highlands of Ethiopia. Using a moment-based approach, the analysis uses a stochastic production function capturing mean, variance, and skewness effects. Welfare implications of diversity are evaluated using a certainty equivalent, measured as expected income minus a risk premium (reflecting the cost of risk). We find that the effect of diversity on skewness dominates its effect on variance, meaning that diversity reduces the cost of risk. The analysis also shows that the beneficial effects of diversity become of greater value in degraded land.     

Linking participatory and GIS-based land use planning methods: A case study from Burkina Faso

Sustainable land use planning is crucial for realizing the aim of food security and for combating land degradation in the Sahel. A participatory land use planning workshop was organised in a village in the eastern region of Burkina Faso to investigate land use problems, their causes, effects and possible solutions. Participatory research tools and GIS were combined to get insight into possible conflicts or synergies between different land use options as mapped by different ethnic groups. Pictograms were used to locate alternative land use options on the map, after which they were digitised for analysis with GIS. The workshop confirms the importance of integrating scientific and local knowledge to develop concrete options for sustainable land use that fit to local realities and aspirations. Local people are knowledgeable about the driving forces behind land degradation, they take actions to combat the effects of degradation, and they have concrete ideas about alternative land use options. The use of GIS proved its added value in the participatory process of integrated land use planning. The maps that were produced also facilitate discussions between community members, researchers and government representatives at the regional level, both regarding current land use problems and regarding alternative options as perceived by the local population.     

民营经济发展的法律环境探析

我国的民营经济经历了一个由不合法到合法,从异己再到重要组成部分的曲折过程。民营经济仍面临着产权保护缺位、市场准入门槛过高、融资困难等诸多不利的法律环境与现状。针对这些现状,应从理顺产权关系,实现产权主体多元化;降低市场准入门槛;拓宽融资渠道等方面入手,完善民营经济发展的法律环境,进一步促进民营经济的发展。     

服装工艺课程教学改革探析

<服装工艺>课程是高职服装设计专业的主干课,是一门实践性很强的课程.随着我国服装制造业的迅猛发展,社会和企业对服装人才的需求越来越强烈.要使学生具备一定的竞争能力,就要进行教学改革:根据专业特点和人才需求,修订教学大纲,突出课程的实践性和职业性:综合利用各种教学手段,改革考试方式,加强对学生动手能力的培养.     

可持续发展视角下江苏能源需求情景预测

文章运用IPAT方程和指数分解的方法分析了江苏省2000—2007年的能源消耗及能源消费强度状况;根据江苏能源需求的历史发展趋势、小康社会指标以及发达国家能源利用状况分情景预测了江苏未来能源利用效率及能源需求总量。文章针对实现小康社会目标的各种情景,分析了经济结构对能源需求和能源强度的影响并提出政策建议。